Pub Date : 2023-12-15DOI: 10.2497/jjspm.70.pref12_1
{"title":"APMA2023粉末冶金国際会議報告","authors":"","doi":"10.2497/jjspm.70.pref12_1","DOIUrl":"https://doi.org/10.2497/jjspm.70.pref12_1","url":null,"abstract":"","PeriodicalId":17423,"journal":{"name":"Journal of the Japan Society of Powder and Powder Metallurgy","volume":"15 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139000488","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 : 2023-12-15DOI: 10.2497/jjspm.70.mtg12_2
{"title":"2024年度春季大会研究発表講演募集","authors":"","doi":"10.2497/jjspm.70.mtg12_2","DOIUrl":"https://doi.org/10.2497/jjspm.70.mtg12_2","url":null,"abstract":"","PeriodicalId":17423,"journal":{"name":"Journal of the Japan Society of Powder and Powder Metallurgy","volume":"292 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138996889","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}
An electronic fuel injection system of automobiles have been commercialized at the end of 1960’s, they have been adopted as environmental measures for many automobiles and motorcycles. In recent years, metal injection molding (MIM) has been adopted as a process for manufacturing a solenoid valve which is a component of electronic fuel injector, and has been commercialized using PB permalloy. However, Ni that is an element of PB permalloy is expensive material, there was a problem that it is difficult to produce the product at low cost. As a solution to this problem, we can use Fe-Cr alloys, although there are few studies on Fe-Cr alloys by MIM process. In addition, when this materials are used in an alternating magnetic field, there is a problem that core loss increases in high frequency range. In this study, we made MIM specimens using Fe-Cr-Si alloy powders containing Si in addition to Cr and investigated the influence of Cr and Si contents on the magnetic properties. These results revealed that high performance soft magnetic material can be obtained by setting the Si content 3% and reducing the Cr content.
{"title":"Effects of Cr and Si Contents on the Magnetic Properties of Fe-Cr-Si Soft Magnetic Alloys by MIM Process","authors":"M. Kimura, Toru Shimizu, H. Watari","doi":"10.2497/jjspm.67.231","DOIUrl":"https://doi.org/10.2497/jjspm.67.231","url":null,"abstract":"An electronic fuel injection system of automobiles have been commercialized at the end of 1960’s, they have been adopted as environmental measures for many automobiles and motorcycles. In recent years, metal injection molding (MIM) has been adopted as a process for manufacturing a solenoid valve which is a component of electronic fuel injector, and has been commercialized using PB permalloy. However, Ni that is an element of PB permalloy is expensive material, there was a problem that it is difficult to produce the product at low cost. As a solution to this problem, we can use Fe-Cr alloys, although there are few studies on Fe-Cr alloys by MIM process. In addition, when this materials are used in an alternating magnetic field, there is a problem that core loss increases in high frequency range. In this study, we made MIM specimens using Fe-Cr-Si alloy powders containing Si in addition to Cr and investigated the influence of Cr and Si contents on the magnetic properties. These results revealed that high performance soft magnetic material can be obtained by setting the Si content 3% and reducing the Cr content.","PeriodicalId":17423,"journal":{"name":"Journal of the Japan Society of Powder and Powder Metallurgy","volume":"25 17","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141204888","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}
An electronic fuel injection system of automobiles have been commercialized at the end of 1960’s, they have been adopted as environmental measures for many automobiles and motorcycles. In recent years, metal injection molding (MIM) has been adopted as a process for manufacturing a solenoid valve which is a component of electronic fuel injector, and has been commercialized using PB permalloy. However, Ni that is an element of PB permalloy is expensive material, there was a problem that it is difficult to produce the product at low cost. As a solution to this problem, we can use Fe-Cr alloys, although there are few studies on Fe-Cr alloys by MIM process. In addition, when this materials are used in an alternating magnetic field, there is a problem that core loss increases in high frequency range. In this study, we made MIM specimens using Fe-Cr-Si alloy powders containing Si in addition to Cr and investigated the influence of Cr and Si contents on the magnetic properties. These results revealed that high performance soft magnetic material can be obtained by setting the Si content 3% and reducing the Cr content.
{"title":"Effects of Cr and Si Contents on the Magnetic Properties of Fe-Cr-Si Soft Magnetic Alloys by MIM Process","authors":"M. Kimura, Toru Shimizu, H. Watari","doi":"10.2497/jjspm.67.231","DOIUrl":"https://doi.org/10.2497/jjspm.67.231","url":null,"abstract":"An electronic fuel injection system of automobiles have been commercialized at the end of 1960’s, they have been adopted as environmental measures for many automobiles and motorcycles. In recent years, metal injection molding (MIM) has been adopted as a process for manufacturing a solenoid valve which is a component of electronic fuel injector, and has been commercialized using PB permalloy. However, Ni that is an element of PB permalloy is expensive material, there was a problem that it is difficult to produce the product at low cost. As a solution to this problem, we can use Fe-Cr alloys, although there are few studies on Fe-Cr alloys by MIM process. In addition, when this materials are used in an alternating magnetic field, there is a problem that core loss increases in high frequency range. In this study, we made MIM specimens using Fe-Cr-Si alloy powders containing Si in addition to Cr and investigated the influence of Cr and Si contents on the magnetic properties. These results revealed that high performance soft magnetic material can be obtained by setting the Si content 3% and reducing the Cr content.","PeriodicalId":17423,"journal":{"name":"Journal of the Japan Society of Powder and Powder Metallurgy","volume":"30 18","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141204968","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}
Thin films of metal-organic frameworks (MOFs) have attracted huge interests for various applications (e.g., sensing, catalysts and opto-electronics) due to their large porosity and tunable chemical property. Controlling the position and orientation of MOF crystals on device-scale substrates (over the centimeter scale) is required for the practical use of these sophisticated applications. Cu(OH)2 is a good precursor of the Cu-based MOF thin film due to their high reactivity with organic linkers, which allows for the growth of MOFs under mild conditions. In addition, lattice matching allows for the epitaxial growth of MOFs on Cu(OH)2. This article describes our recent progress on the fabrication of MOF thin films grown on assemblies of nanostructured Cu(OH)2. The approach enables us to control both position and orientation of MOF crystals on a substrate. The present approach for oriented MOF thin film growth is expanded for the oriented MOF-on-MOF thin films where different types of MOF layers possess epitaxial interfaces. A unique anisotropic plasmon resonance is found in the oriented MOFon-MOF films accommodating Ag nanoparticles. These materials demonstrated here are considered as good candidates for functional porous coatings for solid catalysts, bio-sensors, electrical/optical devises and others.
{"title":"Fabrication of Metal-organic Framework (MOF) Thin Films from Copper Hydroxide Nano-assemblies","authors":"Ken Ikigaki, K. Okada, Masahide Takahashi","doi":"10.2497/jjspm.67.132","DOIUrl":"https://doi.org/10.2497/jjspm.67.132","url":null,"abstract":"Thin films of metal-organic frameworks (MOFs) have attracted huge interests for various applications (e.g., sensing, catalysts and opto-electronics) due to their large porosity and tunable chemical property. Controlling the position and orientation of MOF crystals on device-scale substrates (over the centimeter scale) is required for the practical use of these sophisticated applications. Cu(OH)2 is a good precursor of the Cu-based MOF thin film due to their high reactivity with organic linkers, which allows for the growth of MOFs under mild conditions. In addition, lattice matching allows for the epitaxial growth of MOFs on Cu(OH)2. This article describes our recent progress on the fabrication of MOF thin films grown on assemblies of nanostructured Cu(OH)2. The approach enables us to control both position and orientation of MOF crystals on a substrate. The present approach for oriented MOF thin film growth is expanded for the oriented MOF-on-MOF thin films where different types of MOF layers possess epitaxial interfaces. A unique anisotropic plasmon resonance is found in the oriented MOFon-MOF films accommodating Ag nanoparticles. These materials demonstrated here are considered as good candidates for functional porous coatings for solid catalysts, bio-sensors, electrical/optical devises and others.","PeriodicalId":17423,"journal":{"name":"Journal of the Japan Society of Powder and Powder Metallurgy","volume":" 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141222688","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}
Thin films of metal-organic frameworks (MOFs) have attracted huge interests for various applications (e.g., sensing, catalysts and opto-electronics) due to their large porosity and tunable chemical property. Controlling the position and orientation of MOF crystals on device-scale substrates (over the centimeter scale) is required for the practical use of these sophisticated applications. Cu(OH)2 is a good precursor of the Cu-based MOF thin film due to their high reactivity with organic linkers, which allows for the growth of MOFs under mild conditions. In addition, lattice matching allows for the epitaxial growth of MOFs on Cu(OH)2. This article describes our recent progress on the fabrication of MOF thin films grown on assemblies of nanostructured Cu(OH)2. The approach enables us to control both position and orientation of MOF crystals on a substrate. The present approach for oriented MOF thin film growth is expanded for the oriented MOF-on-MOF thin films where different types of MOF layers possess epitaxial interfaces. A unique anisotropic plasmon resonance is found in the oriented MOFon-MOF films accommodating Ag nanoparticles. These materials demonstrated here are considered as good candidates for functional porous coatings for solid catalysts, bio-sensors, electrical/optical devises and others.
{"title":"Fabrication of Metal-organic Framework (MOF) Thin Films from Copper Hydroxide Nano-assemblies","authors":"Ken Ikigaki, K. Okada, Masahide Takahashi","doi":"10.2497/jjspm.67.132","DOIUrl":"https://doi.org/10.2497/jjspm.67.132","url":null,"abstract":"Thin films of metal-organic frameworks (MOFs) have attracted huge interests for various applications (e.g., sensing, catalysts and opto-electronics) due to their large porosity and tunable chemical property. Controlling the position and orientation of MOF crystals on device-scale substrates (over the centimeter scale) is required for the practical use of these sophisticated applications. Cu(OH)2 is a good precursor of the Cu-based MOF thin film due to their high reactivity with organic linkers, which allows for the growth of MOFs under mild conditions. In addition, lattice matching allows for the epitaxial growth of MOFs on Cu(OH)2. This article describes our recent progress on the fabrication of MOF thin films grown on assemblies of nanostructured Cu(OH)2. The approach enables us to control both position and orientation of MOF crystals on a substrate. The present approach for oriented MOF thin film growth is expanded for the oriented MOF-on-MOF thin films where different types of MOF layers possess epitaxial interfaces. A unique anisotropic plasmon resonance is found in the oriented MOFon-MOF films accommodating Ag nanoparticles. These materials demonstrated here are considered as good candidates for functional porous coatings for solid catalysts, bio-sensors, electrical/optical devises and others.","PeriodicalId":17423,"journal":{"name":"Journal of the Japan Society of Powder and Powder Metallurgy","volume":" 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141222700","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}
With the aim of creating new lithium-ion conducting oxide glasses for all-solid-state lithium-ion batteries, we tried to prepare the glasses in the compositions (50-x)Li 2 SO 4 ∙xLi 2 WO 4 ∙50LiPO 3 (mol%) by use of a traditional melt-quenching method. The glass-transition temperatures of the obtained glasses were increased with an increase of the Li 2 WO 4 contents. The bulk glasses showed relatively high lithium-ion conductivities in the range of 10 -6 to 10 -5 Scm -1 at room temperature. On the other hand, the pellets, which were obtained by pressing the powdered glass samples, showed the conductivities in the range of 10 -7 to 10 -6 Scm -1 at room temperature. The conductivities of the bulk glasses are about one order higher than those of the pellet samples. An all-solid-state battery was composed with the cathode composites of the cathode active materials LiNi and the 25Li 2 SO 4 ∙25Li 2 WO 4 ∙50LiPO 3 (mol%) glass as solid electrolyte. The all-solid-state battery showed good charge-discharge performance at 100°C.
为了为全固态锂离子电池制造新型锂离子导电氧化物玻璃，我们尝试采用传统的熔淬法制备了成分为 (50-x)Li 2 SO 4 ∙xLi 2 WO 4 ∙50LiPO 3 (mol%) 的玻璃。随着 Li 2 WO 4 含量的增加，所获得玻璃的玻璃化转变温度也随之升高。块状玻璃在室温下显示出相对较高的锂离子电导率，范围在 10 -6 到 10 -5 Scm -1 之间。另一方面，通过压制粉末状玻璃样品得到的颗粒在室温下的电导率在 10 -7 到 10 -6 Scm -1 之间。块状玻璃的电导率比颗粒样品高出约一个数量级。利用正极活性材料镍钴锰酸锂和 25Li 2 SO 4 ∙25Li 2 WO 4 ∙50LiPO 3 (mol%) 玻璃的正极复合材料作为固态电解质组成了全固态电池。这种全固态电池在 100°C 温度下显示出良好的充放电性能。
{"title":"Preparation of (50-x)Li2SO4∙xLi2WO4∙50LiPO3 (mol%) Glasses and Their Lithium-ion Conducting Properties","authors":"N. Machida, Yuuta Nose, Toshi Nakagawa","doi":"10.2497/jjspm.67.158","DOIUrl":"https://doi.org/10.2497/jjspm.67.158","url":null,"abstract":"With the aim of creating new lithium-ion conducting oxide glasses for all-solid-state lithium-ion batteries, we tried to prepare the glasses in the compositions (50-x)Li 2 SO 4 ∙xLi 2 WO 4 ∙50LiPO 3 (mol%) by use of a traditional melt-quenching method. The glass-transition temperatures of the obtained glasses were increased with an increase of the Li 2 WO 4 contents. The bulk glasses showed relatively high lithium-ion conductivities in the range of 10 -6 to 10 -5 Scm -1 at room temperature. On the other hand, the pellets, which were obtained by pressing the powdered glass samples, showed the conductivities in the range of 10 -7 to 10 -6 Scm -1 at room temperature. The conductivities of the bulk glasses are about one order higher than those of the pellet samples. An all-solid-state battery was composed with the cathode composites of the cathode active materials LiNi and the 25Li 2 SO 4 ∙25Li 2 WO 4 ∙50LiPO 3 (mol%) glass as solid electrolyte. The all-solid-state battery showed good charge-discharge performance at 100°C.","PeriodicalId":17423,"journal":{"name":"Journal of the Japan Society of Powder and Powder Metallurgy","volume":" 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141222660","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}
With the aim of creating new lithium-ion conducting oxide glasses for all-solid-state lithium-ion batteries, we tried to prepare the glasses in the compositions (50-x)Li 2 SO 4 ∙xLi 2 WO 4 ∙50LiPO 3 (mol%) by use of a traditional melt-quenching method. The glass-transition temperatures of the obtained glasses were increased with an increase of the Li 2 WO 4 contents. The bulk glasses showed relatively high lithium-ion conductivities in the range of 10 -6 to 10 -5 Scm -1 at room temperature. On the other hand, the pellets, which were obtained by pressing the powdered glass samples, showed the conductivities in the range of 10 -7 to 10 -6 Scm -1 at room temperature. The conductivities of the bulk glasses are about one order higher than those of the pellet samples. An all-solid-state battery was composed with the cathode composites of the cathode active materials LiNi and the 25Li 2 SO 4 ∙25Li 2 WO 4 ∙50LiPO 3 (mol%) glass as solid electrolyte. The all-solid-state battery showed good charge-discharge performance at 100°C.
为了为全固态锂离子电池制造新型锂离子导电氧化物玻璃，我们尝试采用传统的熔淬法制备了成分为 (50-x)Li 2 SO 4 ∙xLi 2 WO 4 ∙50LiPO 3 (mol%) 的玻璃。随着 Li 2 WO 4 含量的增加，所获得玻璃的玻璃化转变温度也随之升高。块状玻璃在室温下显示出相对较高的锂离子电导率，范围在 10 -6 到 10 -5 Scm -1 之间。另一方面，通过压制粉末状玻璃样品得到的颗粒在室温下的电导率在 10 -7 到 10 -6 Scm -1 之间。块状玻璃的电导率比颗粒样品高出约一个数量级。利用正极活性材料镍钴锰酸锂和 25Li 2 SO 4 ∙25Li 2 WO 4 ∙50LiPO 3 (mol%) 玻璃的正极复合材料作为固态电解质组成了全固态电池。这种全固态电池在 100°C 温度下显示出良好的充放电性能。
{"title":"Preparation of (50-x)Li2SO4∙xLi2WO4∙50LiPO3 (mol%) Glasses and Their Lithium-ion Conducting Properties","authors":"N. Machida, Yuuta Nose, Toshi Nakagawa","doi":"10.2497/jjspm.67.158","DOIUrl":"https://doi.org/10.2497/jjspm.67.158","url":null,"abstract":"With the aim of creating new lithium-ion conducting oxide glasses for all-solid-state lithium-ion batteries, we tried to prepare the glasses in the compositions (50-x)Li 2 SO 4 ∙xLi 2 WO 4 ∙50LiPO 3 (mol%) by use of a traditional melt-quenching method. The glass-transition temperatures of the obtained glasses were increased with an increase of the Li 2 WO 4 contents. The bulk glasses showed relatively high lithium-ion conductivities in the range of 10 -6 to 10 -5 Scm -1 at room temperature. On the other hand, the pellets, which were obtained by pressing the powdered glass samples, showed the conductivities in the range of 10 -7 to 10 -6 Scm -1 at room temperature. The conductivities of the bulk glasses are about one order higher than those of the pellet samples. An all-solid-state battery was composed with the cathode composites of the cathode active materials LiNi and the 25Li 2 SO 4 ∙25Li 2 WO 4 ∙50LiPO 3 (mol%) glass as solid electrolyte. The all-solid-state battery showed good charge-discharge performance at 100°C.","PeriodicalId":17423,"journal":{"name":"Journal of the Japan Society of Powder and Powder Metallurgy","volume":" 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141222671","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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