R. Welton, M. Stockli, B. Han, S. Murray, T. Pennisi, C. Stinson, A. Aleksandrov, C. Piller, Y. Kang, O. Tarvainen
The U.S. Spallation Neutron Source (SNS) is a state-of-the-art neutron scattering facility delivering the world's most intense pulsed neutron beams to a wide array of instruments which are used to conduct investigations in many fields of science and engineering. Neutrons are produced by spallation of liquid Hg due to bombardment of short (∼1µs), intense (∼35 A) pulses of protons delivered at 60 Hz from a storage ring which is fed by a high-intensity, 1 GeV H− LINAC. This facility has operated almost continuously since 2006, with ion source performance increasing over those years, and currently providing 50-60 mA of H− ions with a duty-factor of 6% for maintenance-free runs of ∼120 days with near 100% availability. Ion source research and development at ORNL has played a key role in enabling and supporting these achievements: this report provides some historical highlights of this effort, describes our current ion source testing facilities, discusses the goals of the program and finally provides a snapshot of some of our ongoing R&D activities. In particular, we have recently simplified and improved the reliability of the plasma ignition gun for the external antenna ion source which is discussed in detail.
{"title":"H− ion source research and development at the Oak Ridge National Laboratory","authors":"R. Welton, M. Stockli, B. Han, S. Murray, T. Pennisi, C. Stinson, A. Aleksandrov, C. Piller, Y. Kang, O. Tarvainen","doi":"10.1063/5.0057549","DOIUrl":"https://doi.org/10.1063/5.0057549","url":null,"abstract":"The U.S. Spallation Neutron Source (SNS) is a state-of-the-art neutron scattering facility delivering the world's most intense pulsed neutron beams to a wide array of instruments which are used to conduct investigations in many fields of science and engineering. Neutrons are produced by spallation of liquid Hg due to bombardment of short (∼1µs), intense (∼35 A) pulses of protons delivered at 60 Hz from a storage ring which is fed by a high-intensity, 1 GeV H− LINAC. This facility has operated almost continuously since 2006, with ion source performance increasing over those years, and currently providing 50-60 mA of H− ions with a duty-factor of 6% for maintenance-free runs of ∼120 days with near 100% availability. Ion source research and development at ORNL has played a key role in enabling and supporting these achievements: this report provides some historical highlights of this effort, describes our current ion source testing facilities, discusses the goals of the program and finally provides a snapshot of some of our ongoing R&D activities. In particular, we have recently simplified and improved the reliability of the plasma ignition gun for the external antenna ion source which is discussed in detail.","PeriodicalId":21797,"journal":{"name":"SEVENTH INTERNATIONAL SYMPOSIUM ON NEGATIVE IONS, BEAMS AND SOURCES (NIBS 2020)","volume":"100 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79928670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D. V. Ghodke, R. Khare, Rajnish Kumar, Manish Pathak, S. K. Jain, A. Amban, K. Krishnan, Kuldeep K Singh, P. Shrivastava, V. Prasad
An external RF antenna based cusp free negative hydrogen (H−) ion source has been designed and developed. This source operates at 10% duty factor and the key experimental results are reported in the paper. The extracted H- ion beam current is 11 mA with 2 ms pulse duration and 50 Hz repetition rate at 50 keV beam energy. Operation of the H- ion source at high duty factor results in temperature rise in components. This may lead to failure of electronic components, vacuum joints of the plasma or igniter chambers, or burn out the extraction electrodes. In order to keep the operating temperature within limits, a water cooling system was designed and incorporated for (i) the 2 MHz RF antenna operating at 90 A RMS at 7 kV AC, (ii) the extraction electrodes, operating at a maximum voltage of 15 kV DC, (iii) the plasma chamber (made of Aluminium Nitride, transparent to RF field with high thermal conductivity), and (iv) the Faraday cup for H- ion current measurement. Forced air cooling was used for the 13.56 MHz RF-based pulsed igniter, plus on the various current-stabilizing electrode biasing networks and RF impedance matching networks.
{"title":"Development of external RF antenna based cusp free high duty factor pulsed negative hydrogen ion source","authors":"D. V. Ghodke, R. Khare, Rajnish Kumar, Manish Pathak, S. K. Jain, A. Amban, K. Krishnan, Kuldeep K Singh, P. Shrivastava, V. Prasad","doi":"10.1063/5.0058103","DOIUrl":"https://doi.org/10.1063/5.0058103","url":null,"abstract":"An external RF antenna based cusp free negative hydrogen (H−) ion source has been designed and developed. This source operates at 10% duty factor and the key experimental results are reported in the paper. The extracted H- ion beam current is 11 mA with 2 ms pulse duration and 50 Hz repetition rate at 50 keV beam energy. Operation of the H- ion source at high duty factor results in temperature rise in components. This may lead to failure of electronic components, vacuum joints of the plasma or igniter chambers, or burn out the extraction electrodes. In order to keep the operating temperature within limits, a water cooling system was designed and incorporated for (i) the 2 MHz RF antenna operating at 90 A RMS at 7 kV AC, (ii) the extraction electrodes, operating at a maximum voltage of 15 kV DC, (iii) the plasma chamber (made of Aluminium Nitride, transparent to RF field with high thermal conductivity), and (iv) the Faraday cup for H- ion current measurement. Forced air cooling was used for the 13.56 MHz RF-based pulsed igniter, plus on the various current-stabilizing electrode biasing networks and RF impedance matching networks.","PeriodicalId":21797,"journal":{"name":"SEVENTH INTERNATIONAL SYMPOSIUM ON NEGATIVE IONS, BEAMS AND SOURCES (NIBS 2020)","volume":"63 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88523322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Kumar, Balram Yelamasetti, V. Vardhan, M. D. Raheem
The main objective of the project is to develop the prototype of V 8 engine piston using CATIA V5R25. The components also are analyzed using simulation tool (ANSYS workbench). The thermal analysis of piston is performed for thermal loading and therefore the results of temperature distribution of the components are shown. Finally, the static and thermal analysis results of the components are compared and the best suited material is chosen.it been observed that aluminium silicon carbide has better load resistance and low deformation.
{"title":"Design and structural analysis of V8 engine piston by using different materials","authors":"K. Kumar, Balram Yelamasetti, V. Vardhan, M. D. Raheem","doi":"10.1063/5.0058665","DOIUrl":"https://doi.org/10.1063/5.0058665","url":null,"abstract":"The main objective of the project is to develop the prototype of V 8 engine piston using CATIA V5R25. The components also are analyzed using simulation tool (ANSYS workbench). The thermal analysis of piston is performed for thermal loading and therefore the results of temperature distribution of the components are shown. Finally, the static and thermal analysis results of the components are compared and the best suited material is chosen.it been observed that aluminium silicon carbide has better load resistance and low deformation.","PeriodicalId":21797,"journal":{"name":"SEVENTH INTERNATIONAL SYMPOSIUM ON NEGATIVE IONS, BEAMS AND SOURCES (NIBS 2020)","volume":"38 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87317442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The plasma parameters of the radio frequency (RF) negative ion source directly affect the density of negative ions and the uniformity of the plasma in the extraction area. In order to understand the behavior of the plasma inside the RF negative ion source, a system of planar and cylindrical Langmuir probes was developed. The system was tested on the RF ion source test facility at the Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP). The Langmuir probe was used to measure the spatial distribution of the plasma parameters in the extraction area and the axial distribution of the plasma parameters in the expansion area. In the experiment, the relationship between the density parameters and the RF power and source pressure is explored. Experimental results show that the plasma parameters present better uniformity, whilst the electron temperature is maintained at a lower level (about 0.8eV) due to the filter magnet field in the extraction area. Also, it has been measured that the electron density can reach up to 6 × 1016 m−3 at 55 kW of RF power. Considering the production of negative ions in the extraction area, the Electron Energy Probability Function (EEPF) is also given at different operational parameters. This article helps us to understand the plasma characteristics and provide technical support for experimental studies of negative ion production and extraction.
{"title":"Analysis of plasma characteristics of a high-power radio frequency negative ion source based on Langmuir probe","authors":"Yongjian Xu, X. Peng, Lingda Yu, Wei Liu, Xie Yahong, Chundong Hu, Yuanlai Xie","doi":"10.1063/5.0057631","DOIUrl":"https://doi.org/10.1063/5.0057631","url":null,"abstract":"The plasma parameters of the radio frequency (RF) negative ion source directly affect the density of negative ions and the uniformity of the plasma in the extraction area. In order to understand the behavior of the plasma inside the RF negative ion source, a system of planar and cylindrical Langmuir probes was developed. The system was tested on the RF ion source test facility at the Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP). The Langmuir probe was used to measure the spatial distribution of the plasma parameters in the extraction area and the axial distribution of the plasma parameters in the expansion area. In the experiment, the relationship between the density parameters and the RF power and source pressure is explored. Experimental results show that the plasma parameters present better uniformity, whilst the electron temperature is maintained at a lower level (about 0.8eV) due to the filter magnet field in the extraction area. Also, it has been measured that the electron density can reach up to 6 × 1016 m−3 at 55 kW of RF power. Considering the production of negative ions in the extraction area, the Electron Energy Probability Function (EEPF) is also given at different operational parameters. This article helps us to understand the plasma characteristics and provide technical support for experimental studies of negative ion production and extraction.","PeriodicalId":21797,"journal":{"name":"SEVENTH INTERNATIONAL SYMPOSIUM ON NEGATIVE IONS, BEAMS AND SOURCES (NIBS 2020)","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90944490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper is mostly the implementation and analysis of 32x1 multiplexer. The various parameters like area, delay, power consumption are analyzed. A multiplexer is a device that takes a number of inputs and transfers them to a single data line from one point to another point. Hence, it is also called parallel to serial converter. Nowadays, these mux has various applications like 32-bit processors, telephony and switching circuits. This MUX was implemented in the Vivado tool with the behavioral modeling style. Because of its efficient features, a 32x1 MUX was developed in a well-prescribed manner which was explained in this paper.
{"title":"A novel design of 32x1 multiplexer in deep submicron technology","authors":"D. Mamatha, K. Mounika, Sudhakar Alluri","doi":"10.1063/5.0060326","DOIUrl":"https://doi.org/10.1063/5.0060326","url":null,"abstract":"This paper is mostly the implementation and analysis of 32x1 multiplexer. The various parameters like area, delay, power consumption are analyzed. A multiplexer is a device that takes a number of inputs and transfers them to a single data line from one point to another point. Hence, it is also called parallel to serial converter. Nowadays, these mux has various applications like 32-bit processors, telephony and switching circuits. This MUX was implemented in the Vivado tool with the behavioral modeling style. Because of its efficient features, a 32x1 MUX was developed in a well-prescribed manner which was explained in this paper.","PeriodicalId":21797,"journal":{"name":"SEVENTH INTERNATIONAL SYMPOSIUM ON NEGATIVE IONS, BEAMS AND SOURCES (NIBS 2020)","volume":"76 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85980498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Ueno, K. Ohkoshi, K. Ikegami, A. Takagi, K. Shinto, H. Oguri
The Japan Proton Accelerator Research Complex (J-PARC) cesiated RF-driven H− ion source (IS) has been stably operated for about six years. From Sep. 2018, the J-PARC 400 MeV LINAC has been steadily operated with the design H− ion beam intensity (IH−) of 50 mA, when a 60 mA beam is injected from the IS. At each end of about 3 months J-PARC operation, the IS supplies a 52.5 keV 72 mA beam for the LINAC 60 mA acceleration. The IS superior emittances predicted in a test-stand were proven by the high RFQ acceleration efficiency of 94.3 % (IH− = 67.9 mA). The high intensity beam with transverse emittances suitable for the RFQ is produced with several unique measures, such as slight water molecule addition into hydrogen plasma; low temperature (about 70 °C) operation of 45°-tapered 16-mm thick plasma electrode with the precise cesium density control; impurity elimination in the hydrogen plasma along with the filter-field optimization; continuous-wave igniter plasma driven with a 50-W 30-MHz RF, and so on. The 110 mA operation results of the IS in the test-stand are presented in this paper. A 65 keV 110 mA H− ion beam, about 103 mA of which was inside the transverse emittances used for a common RFQ design, was stably operated with a duty factor of 4.5 % (1 ms x 45 Hz). The interesting relationship of the IH− without any emittance blowups upon the required beam energy (WH-) was derived as IH−(WH−) = 71.2 x (WH- / 52.5)^2.03. The IS is the benchmark one for the next generation high energy H− LINACs aiming for 100 mA class intensity.
{"title":"110 mA operation of J-PARC cesiated RF-driven H− ion source","authors":"A. Ueno, K. Ohkoshi, K. Ikegami, A. Takagi, K. Shinto, H. Oguri","doi":"10.1063/5.0057552","DOIUrl":"https://doi.org/10.1063/5.0057552","url":null,"abstract":"The Japan Proton Accelerator Research Complex (J-PARC) cesiated RF-driven H− ion source (IS) has been stably operated for about six years. From Sep. 2018, the J-PARC 400 MeV LINAC has been steadily operated with the design H− ion beam intensity (IH−) of 50 mA, when a 60 mA beam is injected from the IS. At each end of about 3 months J-PARC operation, the IS supplies a 52.5 keV 72 mA beam for the LINAC 60 mA acceleration. The IS superior emittances predicted in a test-stand were proven by the high RFQ acceleration efficiency of 94.3 % (IH− = 67.9 mA). The high intensity beam with transverse emittances suitable for the RFQ is produced with several unique measures, such as slight water molecule addition into hydrogen plasma; low temperature (about 70 °C) operation of 45°-tapered 16-mm thick plasma electrode with the precise cesium density control; impurity elimination in the hydrogen plasma along with the filter-field optimization; continuous-wave igniter plasma driven with a 50-W 30-MHz RF, and so on. The 110 mA operation results of the IS in the test-stand are presented in this paper. A 65 keV 110 mA H− ion beam, about 103 mA of which was inside the transverse emittances used for a common RFQ design, was stably operated with a duty factor of 4.5 % (1 ms x 45 Hz). The interesting relationship of the IH− without any emittance blowups upon the required beam energy (WH-) was derived as IH−(WH−) = 71.2 x (WH- / 52.5)^2.03. The IS is the benchmark one for the next generation high energy H− LINACs aiming for 100 mA class intensity.","PeriodicalId":21797,"journal":{"name":"SEVENTH INTERNATIONAL SYMPOSIUM ON NEGATIVE IONS, BEAMS AND SOURCES (NIBS 2020)","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86056706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Rajneesh, Ch. Ashok Kumar, K. P. Kumar, S. Udayabhaskar
When humans evolve, there are several problems that contaminate and pollute the environment. The developments in technology to find better products often lead to an increase in emissions in the atmosphere. To overcome these problems, a suitable solution to decrease polymer scrap is replaced by making the composites from natural fibres. The properties of FRP composites produced from epoxy resin and fibres are addressed. In this paper, we fabricated specimens at different natural fibres of coconut coir with different compositions of hardener (30,35 and 40%) and resin epoxy (70, 65, and 60%). The laminates are fabricated by hand layup method effectively. Mechanical Properties of the composite specimen are determined and compared.
{"title":"Investigation on mechanical properties of composite for different proportion of natural fibres with epoxy resin","authors":"N. Rajneesh, Ch. Ashok Kumar, K. P. Kumar, S. Udayabhaskar","doi":"10.1063/5.0058046","DOIUrl":"https://doi.org/10.1063/5.0058046","url":null,"abstract":"When humans evolve, there are several problems that contaminate and pollute the environment. The developments in technology to find better products often lead to an increase in emissions in the atmosphere. To overcome these problems, a suitable solution to decrease polymer scrap is replaced by making the composites from natural fibres. The properties of FRP composites produced from epoxy resin and fibres are addressed. In this paper, we fabricated specimens at different natural fibres of coconut coir with different compositions of hardener (30,35 and 40%) and resin epoxy (70, 65, and 60%). The laminates are fabricated by hand layup method effectively. Mechanical Properties of the composite specimen are determined and compared.","PeriodicalId":21797,"journal":{"name":"SEVENTH INTERNATIONAL SYMPOSIUM ON NEGATIVE IONS, BEAMS AND SOURCES (NIBS 2020)","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81596389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Sahu, Rashmi Samanth, T. Mendez, S. G. Nayak, K. V. Kedlaya
MAC Unit is the basic building block of any signal processing hardware. At present, every field, such as medicine, astronomy, geography, industry, embedded system, etc requires applications of digital image processing. These fields require real-time processing, and efficiency is necessary in the implementation of digital image processing. Multiplier –and Accumulator (MAC) Units perform the mathematical operation such as convolution. They are the fundamental digital block and are the most computationally and resource-demanding unit. A MAC unit with optimum performance and power consumption is always desired. The primary contribution of this paper is investigating the existing work and techniques used by several authors to minimize the power consumption in the design of MAC Unit. This review can provide aninsight to the beginners in the VLSI Arithmetic Circuit Design to gain more idea on Low power MAC Unit Design.
{"title":"VLSI design techniques for low power MAC unit: A review","authors":"A. Sahu, Rashmi Samanth, T. Mendez, S. G. Nayak, K. V. Kedlaya","doi":"10.1063/5.0057909","DOIUrl":"https://doi.org/10.1063/5.0057909","url":null,"abstract":"MAC Unit is the basic building block of any signal processing hardware. At present, every field, such as medicine, astronomy, geography, industry, embedded system, etc requires applications of digital image processing. These fields require real-time processing, and efficiency is necessary in the implementation of digital image processing. Multiplier –and Accumulator (MAC) Units perform the mathematical operation such as convolution. They are the fundamental digital block and are the most computationally and resource-demanding unit. A MAC unit with optimum performance and power consumption is always desired. The primary contribution of this paper is investigating the existing work and techniques used by several authors to minimize the power consumption in the design of MAC Unit. This review can provide aninsight to the beginners in the VLSI Arithmetic Circuit Design to gain more idea on Low power MAC Unit Design.","PeriodicalId":21797,"journal":{"name":"SEVENTH INTERNATIONAL SYMPOSIUM ON NEGATIVE IONS, BEAMS AND SOURCES (NIBS 2020)","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85050919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Compressors are head or strain generating devices, which boom the strength of fluids passing via them. The present work deals with 3-Dimensional stable modeling, evaluation and optimization of “centrifugal compressor impeller”. From the structural evaluation, the post processed consequences are acquired to present the output of evaluation within the shape of strain, most deflection. The modal evaluation is accomplished to expect the conduct of the impeller in its dynamic nature and the essential modes of vibrations are decided alongside the mode shapes. It is located from the evaluation that running strain is beneath the allowable strain; subsequently the impeller layout is appropriate below given running conditions.
{"title":"Modelling and analysis of centrifugal compressor 3D impeller","authors":"Shaik Shashavali, C. Chakravarthy, N. Prabhakar","doi":"10.1063/5.0058095","DOIUrl":"https://doi.org/10.1063/5.0058095","url":null,"abstract":"Compressors are head or strain generating devices, which boom the strength of fluids passing via them. The present work deals with 3-Dimensional stable modeling, evaluation and optimization of “centrifugal compressor impeller”. From the structural evaluation, the post processed consequences are acquired to present the output of evaluation within the shape of strain, most deflection. The modal evaluation is accomplished to expect the conduct of the impeller in its dynamic nature and the essential modes of vibrations are decided alongside the mode shapes. It is located from the evaluation that running strain is beneath the allowable strain; subsequently the impeller layout is appropriate below given running conditions.","PeriodicalId":21797,"journal":{"name":"SEVENTH INTERNATIONAL SYMPOSIUM ON NEGATIVE IONS, BEAMS AND SOURCES (NIBS 2020)","volume":"98 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90360748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dental implants are the first choice in replacing any lost teeth. The material used for dental implants should have high mechanical strength, superior biocompatibility, good osseointegration ability, high resistance to corrosion and wear and better aesthetic appeal. Titanium (Ti) is popularly used in dentistry for implant purpose as it exhibits excellent mechanical and biological properties. The hypersensitivity and grey colour of the implant has raised demands for metal-free implant materials with more aesthetic value. With the advancements in biosciences and technology there are various materials options for implants in dentistry. The objective of this review article is to study different materials properties which can be a viable alternative to titanium. Ceramics (zirconia) and polymers (PEEK, PMMA) are emerging as promising metal-free alternative to titanium implants. Nevertheless, further long-term clinical rates and studies are needed to validate total replacement of titanium by the aforementioned materials.
{"title":"Biomaterials used in dental applications to improve success rate of implantation: A review","authors":"Aditi Shingade, P. Dhatrak","doi":"10.1063/5.0057919","DOIUrl":"https://doi.org/10.1063/5.0057919","url":null,"abstract":"Dental implants are the first choice in replacing any lost teeth. The material used for dental implants should have high mechanical strength, superior biocompatibility, good osseointegration ability, high resistance to corrosion and wear and better aesthetic appeal. Titanium (Ti) is popularly used in dentistry for implant purpose as it exhibits excellent mechanical and biological properties. The hypersensitivity and grey colour of the implant has raised demands for metal-free implant materials with more aesthetic value. With the advancements in biosciences and technology there are various materials options for implants in dentistry. The objective of this review article is to study different materials properties which can be a viable alternative to titanium. Ceramics (zirconia) and polymers (PEEK, PMMA) are emerging as promising metal-free alternative to titanium implants. Nevertheless, further long-term clinical rates and studies are needed to validate total replacement of titanium by the aforementioned materials.","PeriodicalId":21797,"journal":{"name":"SEVENTH INTERNATIONAL SYMPOSIUM ON NEGATIVE IONS, BEAMS AND SOURCES (NIBS 2020)","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78580231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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