Pub Date : 2023-07-01DOI: 10.14489/glc.2023.07.pp.009-016
V. A. Vlasov, G. Volokitin, N. Skripnikova, V. A. Ushkov, M. Bruyako, D. A. Zorin
The characteristics of glass-ceramic materials obtained using thermal plasma have been studied. The effect of TPP ash on the properties of glass-ceramic materials should be taken into account. Samples with a mass content of ash of 70 % were obtained. They have the following characteristics: compressive strength 530 MPa, flexural strength 110 MPa, density 3000 kg/m3.
{"title":"APPLICATION OF THERMAL PLASMA ENERGY FOR PRODUCING GLASS-CRYSTALLINE MATERIALS","authors":"V. A. Vlasov, G. Volokitin, N. Skripnikova, V. A. Ushkov, M. Bruyako, D. A. Zorin","doi":"10.14489/glc.2023.07.pp.009-016","DOIUrl":"https://doi.org/10.14489/glc.2023.07.pp.009-016","url":null,"abstract":"The characteristics of glass-ceramic materials obtained using thermal plasma have been studied. The effect of TPP ash on the properties of glass-ceramic materials should be taken into account. Samples with a mass content of ash of 70 % were obtained. They have the following characteristics: compressive strength 530 MPa, flexural strength 110 MPa, density 3000 kg/m3.","PeriodicalId":445802,"journal":{"name":"Steklo i Keramika","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139365741","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}
Pub Date : 2023-07-01DOI: 10.14489/glc.2023.07.pp.043-049
E. N. Kuzin
The volumes of large-tonnage mineral waste generation cause serious concern from the side of environmental supervision. Most of the mineral waste is a valuable secondary raw material, but the lack of integrated technologies for their processing significantly slows down their processing. As part of the work, an assessment was made of the possibility of joint processing of quartz-leucoxene concentrate (waste from the oil production process) and brucite-containing waste from the production of refractories. Joint pyrometallurgical processing of two waste products made it possible to obtain magnesium titanium, a valuable product for various industries. Hydrometallurgical processing of magnesium titanate made it possible to obtain a complex magnesium-titanium-containing coagulant, which showed extremely high efficiency in the process of treating wastewater with a high pH level (concrete mixing unit). The use of a complex reagent, in addition to increasing the cleaning efficiency (reducing residual concentrations of pollutants), made it possible to reduce reagent costs and intensify the processes of sedimentation and filtration of coagulation sludge (simplification of the instrumental scheme).
{"title":"JOINT PROCESSING OF QUARTZ-LEUCOXENE CONCENTRATE AND BRUCITE CONTAINING WASTE FROM THE PRODUCTION OF REFRACTORY MATERIALS TO OBTAIN COMPLEX COAGULANTS","authors":"E. N. Kuzin","doi":"10.14489/glc.2023.07.pp.043-049","DOIUrl":"https://doi.org/10.14489/glc.2023.07.pp.043-049","url":null,"abstract":"The volumes of large-tonnage mineral waste generation cause serious concern from the side of environmental supervision. Most of the mineral waste is a valuable secondary raw material, but the lack of integrated technologies for their processing significantly slows down their processing. As part of the work, an assessment was made of the possibility of joint processing of quartz-leucoxene concentrate (waste from the oil production process) and brucite-containing waste from the production of refractories. Joint pyrometallurgical processing of two waste products made it possible to obtain magnesium titanium, a valuable product for various industries. Hydrometallurgical processing of magnesium titanate made it possible to obtain a complex magnesium-titanium-containing coagulant, which showed extremely high efficiency in the process of treating wastewater with a high pH level (concrete mixing unit). The use of a complex reagent, in addition to increasing the cleaning efficiency (reducing residual concentrations of pollutants), made it possible to reduce reagent costs and intensify the processes of sedimentation and filtration of coagulation sludge (simplification of the instrumental scheme).","PeriodicalId":445802,"journal":{"name":"Steklo i Keramika","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139365828","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}
Pub Date : 2023-07-01DOI: 10.14489/glc.2023.07.pp.017-024
M. Markov, A. N. Belyakov, D. A. Dyuskina, A. G. Chekuryaev, A. Bykova, S. Perevislov, A. Kashtanov
The possibility of obtaining complex-shaped mechanical engineering products based on reaction-sintered silicon carbide using two methods - mechanical processing of polymerized blanks before sintering and hot slip molding under pressure, has been studied. The obtained silicon carbide ceramic materials are characterized by a low density of about 3.04…3.07 g/cm3, a porosity of ? 1 % and a bending strength of 320…360 MPa. Materials based on silicon carbide modified with boron carbide have a density of 2.72 g/cm3, a porosity of about 1 % and a bending strength of 280 MPa.
{"title":"METHODS OF FORMING COMPLEX PROFILE PRODUCTS FROM HEAT-RESISTANT CERAMIC MATERIALS BASED ON SILICON CARBIDE","authors":"M. Markov, A. N. Belyakov, D. A. Dyuskina, A. G. Chekuryaev, A. Bykova, S. Perevislov, A. Kashtanov","doi":"10.14489/glc.2023.07.pp.017-024","DOIUrl":"https://doi.org/10.14489/glc.2023.07.pp.017-024","url":null,"abstract":"The possibility of obtaining complex-shaped mechanical engineering products based on reaction-sintered silicon carbide using two methods - mechanical processing of polymerized blanks before sintering and hot slip molding under pressure, has been studied. The obtained silicon carbide ceramic materials are characterized by a low density of about 3.04…3.07 g/cm3, a porosity of ? 1 % and a bending strength of 320…360 MPa. Materials based on silicon carbide modified with boron carbide have a density of 2.72 g/cm3, a porosity of about 1 % and a bending strength of 280 MPa.","PeriodicalId":445802,"journal":{"name":"Steklo i Keramika","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139364644","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}
Pub Date : 2023-07-01DOI: 10.14489/glc.2023.07.pp.035-042
V. Y. Borovoy, O. V. Kazmina, V. V. Shekhovtsov
The paper presents the results of a study of the processes of glass formation during the production of a frit by the method of induction heating. According to X-ray phase analysis, the resulting frit is completely amorphous. The frit meets the standard requirements for a 45 mm flow and a thermal expansion coefficient of 120?10–7 K–1. The enamel coating has a high chemical resistance to acids and alkalis. A comparative analysis of frit synthesis in a laboratory electric furnace using an induction heating device showed that the duration of frit induction heating is halved, energy consumption is reduced by 23 %, and the process efficiency is increased four times on average.
本文介绍了通过感应加热法生产熔块过程中玻璃形成过程的研究结果。根据 X 射线相分析，生产出的熔块完全是无定形的。熔块符合 45 毫米流量和 120?10-7 K-1 热膨胀系数的标准要求。搪瓷涂层具有很高的耐酸碱化学性。使用感应加热装置在实验室电炉中合成熔块的对比分析表明，熔块感应加热的持续时间缩短了一半，能耗降低了 23%，工艺效率平均提高了四倍。
{"title":"SYNTHESIS OF A FRIT FOR OBTAINING ENAMEL COATING OF STEEL PIPES BY THE METHOD OF INDUCTION HEATING","authors":"V. Y. Borovoy, O. V. Kazmina, V. V. Shekhovtsov","doi":"10.14489/glc.2023.07.pp.035-042","DOIUrl":"https://doi.org/10.14489/glc.2023.07.pp.035-042","url":null,"abstract":"The paper presents the results of a study of the processes of glass formation during the production of a frit by the method of induction heating. According to X-ray phase analysis, the resulting frit is completely amorphous. The frit meets the standard requirements for a 45 mm flow and a thermal expansion coefficient of 120?10–7 K–1. The enamel coating has a high chemical resistance to acids and alkalis. A comparative analysis of frit synthesis in a laboratory electric furnace using an induction heating device showed that the duration of frit induction heating is halved, energy consumption is reduced by 23 %, and the process efficiency is increased four times on average.","PeriodicalId":445802,"journal":{"name":"Steklo i Keramika","volume":"278 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139365818","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}
Pub Date : 2023-07-01DOI: 10.14489/glc.2023.07.pp.025-034
A. Rodin, A. A. Ermakov, V. M. Kyashkin, N. Rodina, V. T. Erofeev
Ceramovermiculite thermal insulation on a wollastonite bundle was obtained from chalk, diatomite and expanded vermiculite by the method of solid-phase synthesis of components. The influence of the granulometric composition of expanded vermiculite, as well as the composition of the charge on the phase composition, physical, mechanical and thermophysical properties of ceramic materials has been studied. The main crystalline phase of ceramic samples is biotite and wollastonite. The developed ceramovermiculite thermal insulation has an apparent density from 310 to 510 kg/m3 and can be operated at temperatures up to 1050 °C inclusive. The developed materials can be used as refractory thermal insulation of industrial furnaces, equipment, etc.
{"title":"HIGH-TEMPERATURE CERAMOVERMICULITE THERMAL INSULATION ON A WOLLASTONITE BUNDLE","authors":"A. Rodin, A. A. Ermakov, V. M. Kyashkin, N. Rodina, V. T. Erofeev","doi":"10.14489/glc.2023.07.pp.025-034","DOIUrl":"https://doi.org/10.14489/glc.2023.07.pp.025-034","url":null,"abstract":"Ceramovermiculite thermal insulation on a wollastonite bundle was obtained from chalk, diatomite and expanded vermiculite by the method of solid-phase synthesis of components. The influence of the granulometric composition of expanded vermiculite, as well as the composition of the charge on the phase composition, physical, mechanical and thermophysical properties of ceramic materials has been studied. The main crystalline phase of ceramic samples is biotite and wollastonite. The developed ceramovermiculite thermal insulation has an apparent density from 310 to 510 kg/m3 and can be operated at temperatures up to 1050 °C inclusive. The developed materials can be used as refractory thermal insulation of industrial furnaces, equipment, etc.","PeriodicalId":445802,"journal":{"name":"Steklo i Keramika","volume":"141 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139364919","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}
Pub Date : 2023-07-01DOI: 10.14489/glc.2023.07.pp.050-056
A. N. Smirnov, S. A. Krylova, D. A. Gorlenko, E. E. Kuzmina, D. Alekseev
The article presents the results of a study of the influence of humidity, oxygen on the formation of the structure and strength properties of products based on magnesium oxide and organic binder SFPR-054. It has been established that carrying out the polymerization process at a temperature of 25 ?C without access to air increases the strength of the samples by about 5 times compared to samples polymerized in dry form at a temperature of 300 ?C. The obtained results suggest that the increase in the structural and mechanical properties of products based on magnesium oxide will be facilitated by the moistening of the mixture, the settling of the pressed product and the polymerization process in an oxygen-free environment or in an atmosphere of water vapor.
{"title":"STUDY OF THE STRUCTURAL AND MECHANICAL PROPERTIES OF SAMPLES BASED ON MAGNESIUM OXIDE FORMED IN THE PROCESS OF POLYMERIZATION OF ORGANIC BINDER","authors":"A. N. Smirnov, S. A. Krylova, D. A. Gorlenko, E. E. Kuzmina, D. Alekseev","doi":"10.14489/glc.2023.07.pp.050-056","DOIUrl":"https://doi.org/10.14489/glc.2023.07.pp.050-056","url":null,"abstract":"The article presents the results of a study of the influence of humidity, oxygen on the formation of the structure and strength properties of products based on magnesium oxide and organic binder SFPR-054. It has been established that carrying out the polymerization process at a temperature of 25 ?C without access to air increases the strength of the samples by about 5 times compared to samples polymerized in dry form at a temperature of 300 ?C. The obtained results suggest that the increase in the structural and mechanical properties of products based on magnesium oxide will be facilitated by the moistening of the mixture, the settling of the pressed product and the polymerization process in an oxygen-free environment or in an atmosphere of water vapor.","PeriodicalId":445802,"journal":{"name":"Steklo i Keramika","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139365790","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}
Pub Date : 2023-06-01DOI: 10.14489/glc.2023.06.pp.060-068
A. Vasil'ev, O. N. Ivanov, M. Yaprintsev, M. Zhezhu
Purpose of this work is to establish the features in the microstructure and thermoelectric properties of composites consisting of Bi2Te2.7Se0.3-based matrix and a Fe filler. The composition with a filler content of 0.3 wt. % Fe has a higher thermolectric figure of merit as compared to the Bi2Te2.7Se0.3 matrix. For this composition, the maximum value of ZT reaches ~0.75, while for Bi2Te2.7Se0.3 ZT does not exceed ~0.63. Thus, in the composite of the Bi2Te2.7Se0.3 + Fe system, the thermoelectric figure of merit can be increased by about 20 %.
{"title":"FEATURES IN MICROSTRUCTURE AND THERMOELECTRIC PROPERTIES OF THE COMPOSITES Bi2Te2,7Se0,3+Fe WITH FILLER INCLUSIONS OF CORE-SHELL TYPE","authors":"A. Vasil'ev, O. N. Ivanov, M. Yaprintsev, M. Zhezhu","doi":"10.14489/glc.2023.06.pp.060-068","DOIUrl":"https://doi.org/10.14489/glc.2023.06.pp.060-068","url":null,"abstract":"Purpose of this work is to establish the features in the microstructure and thermoelectric properties of composites consisting of Bi2Te2.7Se0.3-based matrix and a Fe filler. The composition with a filler content of 0.3 wt. % Fe has a higher thermolectric figure of merit as compared to the Bi2Te2.7Se0.3 matrix. For this composition, the maximum value of ZT reaches ~0.75, while for Bi2Te2.7Se0.3 ZT does not exceed ~0.63. Thus, in the composite of the Bi2Te2.7Se0.3 + Fe system, the thermoelectric figure of merit can be increased by about 20 %.","PeriodicalId":445802,"journal":{"name":"Steklo i Keramika","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139371536","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}
Pub Date : 2023-06-01DOI: 10.14489/glc.2023.06.pp.030-040
N. Min’ko, V. Bessmertny, M. A. Bondarenko, N. M. Zdorenko, E. Isaenko, E. E. Tarasova, A. V. Makarov, A. V. Cherkasоv
The technology of glass concrete based on dispersed container and sheet glass has been developed. It is shown that when Portland cement and cullet are ground together, when a specific surface area of 5890 – 6450 cm2/g and a particle size of 3.4 – 3.6 microns with a dispersed glass content in the composite of 20 – 50 wt. % with hyperplasticizer glass concrete corresponds to class B30 – B40, which meets the requirements of regulatory documents. The microstructure of glass concrete and the features of its dehydration when heated to 1000 °C investigated. Using X-ray phase analysis, it was found that sodium-calcium hydroaluminosilicates such as gmelenite and thomsonite are formed in glass concrete.
{"title":"ENVIRONMENTAL ASPECTS OF THE USE OF BATTLE GLASS FOR THE PRODUCTION OF GLASS CONCRETE","authors":"N. Min’ko, V. Bessmertny, M. A. Bondarenko, N. M. Zdorenko, E. Isaenko, E. E. Tarasova, A. V. Makarov, A. V. Cherkasоv","doi":"10.14489/glc.2023.06.pp.030-040","DOIUrl":"https://doi.org/10.14489/glc.2023.06.pp.030-040","url":null,"abstract":"The technology of glass concrete based on dispersed container and sheet glass has been developed. It is shown that when Portland cement and cullet are ground together, when a specific surface area of 5890 – 6450 cm2/g and a particle size of 3.4 – 3.6 microns with a dispersed glass content in the composite of 20 – 50 wt. % with hyperplasticizer glass concrete corresponds to class B30 – B40, which meets the requirements of regulatory documents. The microstructure of glass concrete and the features of its dehydration when heated to 1000 °C investigated. Using X-ray phase analysis, it was found that sodium-calcium hydroaluminosilicates such as gmelenite and thomsonite are formed in glass concrete.","PeriodicalId":445802,"journal":{"name":"Steklo i Keramika","volume":"97 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139371370","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}
Pub Date : 2023-06-01DOI: 10.14489/glc.2023.06.pp.069-072
A. R. Shakhmayeva, E. Kazalieva
A method is proposed for processing the reverse side of silicon transistor structures before the metal deposition process and obtaining contact to the collector of the transistor being formed. The parameters of the surface roughness of the silicon surface treated with carbide–silicon sand are studied in order to improve the adhesive properties before spraying the contact to the collector region of the transistor.
{"title":"APPLICATION OF SILICON CARBIDE SAND IN THE TECHNOLOGY OF PROCESSING THE REVERSE SIDE OF SILICON TRANSISTOR STRUCTURES","authors":"A. R. Shakhmayeva, E. Kazalieva","doi":"10.14489/glc.2023.06.pp.069-072","DOIUrl":"https://doi.org/10.14489/glc.2023.06.pp.069-072","url":null,"abstract":"A method is proposed for processing the reverse side of silicon transistor structures before the metal deposition process and obtaining contact to the collector of the transistor being formed. The parameters of the surface roughness of the silicon surface treated with carbide–silicon sand are studied in order to improve the adhesive properties before spraying the contact to the collector region of the transistor.","PeriodicalId":445802,"journal":{"name":"Steklo i Keramika","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139371517","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}
Pub Date : 2023-06-01DOI: 10.14489/glc.2023.06.pp.041-053
T. V. Safronova, Z. Zhao, J. Li, M. Kaimonov, T. Shatalova, Y. Filippov, T. V. Filippova, O. T. Gavlina, V. S. Vlasenko, A. V. Knotko
Powders of hydroxyapatite (HA) Ca10(PO4)6(OH)2 treated in 0.25M aqueous solutions of ammonium NH4H2PO4, sodium NaH2PO4 and potassium KH2PO4 dihydrophosphates for 1 hour under stirring were used for ceramics production. According to the XRD data, there was no changes in the phase composition of the powders after such treatment. After firing in the range of 900 – 1100 ?С, the phase composition of ceramics based on HA Ca10(PO4)6(OH)2 powder treated with an aqueous solution of NH4H2PO4 included ?-tricalcium phosphate ?-Ca3(PO4)2 and HA Ca10(PO4)6(OH)2; The phase composition of ceramics based on HA Ca10(PO4)6(OH)2 powder treated with NaH2PO4 aqueous solution included sodium-substituted tricalcium phosphate Ca10Na(PO4)7 and HA Ca10(PO4)6(OH)2; the phase composition of ceramics based on HA Ca10(PO4)6(OH)2 powder treated with an aqueous solution of KH2PO4 included potassium-substituted tricalcium phosphate Ca10K(PO4)7 and HA Ca10(PO4)6(OH)2. The formation of biphasic ceramics occurred due to a decrease in the molar ratio Ca/P of HA powder after treatment in aqueous solutions of ammonium NH4H2PO4, sodium NaH2PO4 and potassium KH2PO4 dihydrophosphates. HA-particle surface adsorption of cations and anions from the solution, slight dissolution of HA in solutions of dihydrophosphates with acidic pH, as well as ion exchange of cations and anions of HA for cations and anions from solutions, were possible processes providing change in the ratio of cations and anions in the HA powder. The resulting ceramic composites contain biocompatible phases, and can be recommended for the creation of bone implants.
将羟基磷灰石（HA）Ca10(PO4)6(OH)2 粉末在 0.25M 的 NH4H2PO4 铵、NaH2PO4 钠和 KH2PO4 钾二氢磷酸盐水溶液中搅拌处理 1 小时后，用于陶瓷生产。根据 XRD 数据，经过这种处理后，粉末的相组成没有发生变化。用 NH4H2PO4 水溶液处理 HA Ca10(PO4)6(OH)2 粉末后，在 900 - 1100 °C的范围内焙烧，陶瓷的相组成包括磷酸三钙、磷酸二氢钙和磷酸钙钙。-用 NaH2PO4 水溶液处理基于 HA Ca10(PO4)6(OH)2 粉末的陶瓷的相组成包括钠取代磷酸三钙 Ca10Na(PO4)7 和 HA Ca10(PO4)6(OH)2；用 KH2PO4 水溶液处理的基于 HA Ca10(PO4)6(OH)2 粉末的陶瓷的相组成包括钾代磷酸三钙 Ca10K(PO4)7 和 HA Ca10(PO4)6(OH)2。在 NH4H2PO4 铵、NaH2PO4 钠和 KH2PO4 二氢磷酸钾水溶液中处理后，由于 HA 粉末的 Ca/P 摩尔比降低，形成了双相陶瓷。HA 颗粒表面对溶液中阳离子和阴离子的吸附、HA 在酸性 pH 值的二氢磷酸盐溶液中的轻微溶解，以及 HA 的阳离子和阴离子与溶液中阳离子和阴离子的离子交换，都是改变 HA 粉末中阳离子和阴离子比例的可能过程。由此产生的陶瓷复合材料含有生物相容性相，可推荐用于制作骨植入物。
{"title":"CERAMIC MATERIALS OF A GIVEN PHASE COMPOSITION BASED ON HYDROXYAPATITE POWDER TREATED IN SOLUTIONS OF AMMONIUM, SODIUM AND POTASSIUM DIHYDROPHOSPHATES","authors":"T. V. Safronova, Z. Zhao, J. Li, M. Kaimonov, T. Shatalova, Y. Filippov, T. V. Filippova, O. T. Gavlina, V. S. Vlasenko, A. V. Knotko","doi":"10.14489/glc.2023.06.pp.041-053","DOIUrl":"https://doi.org/10.14489/glc.2023.06.pp.041-053","url":null,"abstract":"Powders of hydroxyapatite (HA) Ca10(PO4)6(OH)2 treated in 0.25M aqueous solutions of ammonium NH4H2PO4, sodium NaH2PO4 and potassium KH2PO4 dihydrophosphates for 1 hour under stirring were used for ceramics production. According to the XRD data, there was no changes in the phase composition of the powders after such treatment. After firing in the range of 900 – 1100 ?С, the phase composition of ceramics based on HA Ca10(PO4)6(OH)2 powder treated with an aqueous solution of NH4H2PO4 included ?-tricalcium phosphate ?-Ca3(PO4)2 and HA Ca10(PO4)6(OH)2; The phase composition of ceramics based on HA Ca10(PO4)6(OH)2 powder treated with NaH2PO4 aqueous solution included sodium-substituted tricalcium phosphate Ca10Na(PO4)7 and HA Ca10(PO4)6(OH)2; the phase composition of ceramics based on HA Ca10(PO4)6(OH)2 powder treated with an aqueous solution of KH2PO4 included potassium-substituted tricalcium phosphate Ca10K(PO4)7 and HA Ca10(PO4)6(OH)2. The formation of biphasic ceramics occurred due to a decrease in the molar ratio Ca/P of HA powder after treatment in aqueous solutions of ammonium NH4H2PO4, sodium NaH2PO4 and potassium KH2PO4 dihydrophosphates. HA-particle surface adsorption of cations and anions from the solution, slight dissolution of HA in solutions of dihydrophosphates with acidic pH, as well as ion exchange of cations and anions of HA for cations and anions from solutions, were possible processes providing change in the ratio of cations and anions in the HA powder. The resulting ceramic composites contain biocompatible phases, and can be recommended for the creation of bone implants.","PeriodicalId":445802,"journal":{"name":"Steklo i Keramika","volume":"56 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139371759","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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