Journal of Asian Ceramic Societies最新文献_第10页

Micro-toughness of ZrB2-based ceramics evaluated by ultra-shallow V-notch 超浅v形缺口评价zrb2基陶瓷的微韧性

IF 2.3 4区材料科学

Journal of Asian Ceramic Societies Pub Date : 2022-07-03 DOI: 10.1080/21870764.2022.2104433

Xinyuan Zhao, Anzhe Wang, Dazhao Liu, Huimin Yin, Zhiwei Xia, Changhao Xu, Peng Zhou

{"title":"Micro-toughness of ZrB2-based ceramics evaluated by ultra-shallow V-notch","authors":"Xinyuan Zhao, Anzhe Wang, Dazhao Liu, Huimin Yin, Zhiwei Xia, Changhao Xu, Peng Zhou","doi":"10.1080/21870764.2022.2104433","DOIUrl":"https://doi.org/10.1080/21870764.2022.2104433","url":null,"abstract":"ABSTRACT Because of the essential difference between micro-toughness and macro-toughness, the indiscriminate application of deep notch tests may result in serious errors of micro-toughness associated with shallow cracks or flaws in ceramics. Here, the micro-toughness values of ZrB2, ZrB2-SiC and ZrB2-SiC-Grapite ceramics were successfully measured through ultra-shallow sharp V-notches (depth less than 40 μm, the ratio of notch depth to sample height less than 0.01) produced by nanosecond laser on the surface of bending bars for the first time. Results indicated that the micro-toughness values obtained from these three typical ceramics were significantly lower than the macro-toughness values measured from deep notches. Furthermore, conflicts may arise when comparing the micro- with macro-toughness between different materials, such as the macro-toughness of ZrB2-SiC-G was larger than that of ZrB2-SiC, while a contrary result was obtained for micro-toughness. Compared with the indentation method, improved accuracy of micro-toughness measurement could be obtained by this method.","PeriodicalId":15130,"journal":{"name":"Journal of Asian Ceramic Societies","volume":"10 1","pages":"666 - 673"},"PeriodicalIF":2.3,"publicationDate":"2022-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45466563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance improvement of thin-film transistors with In2O3 channel engineering In2O3沟道工程对薄膜晶体管性能的改善

IF 2.3 4区材料科学

Journal of Asian Ceramic Societies Pub Date : 2022-07-03 DOI: 10.1080/21870764.2022.2101597

Chengzhe Han, Junjie Wang, Guoxia Liu, F. Shan

{"title":"Performance improvement of thin-film transistors with In2O3 channel engineering","authors":"Chengzhe Han, Junjie Wang, Guoxia Liu, F. Shan","doi":"10.1080/21870764.2022.2101597","DOIUrl":"https://doi.org/10.1080/21870764.2022.2101597","url":null,"abstract":"ABSTRACT Thin-film transistors (TFTs) with bilayer channels were used to improve the field-effect mobility and bias stress stability of the TFTs. Homogeneous structures were fabricated by the combination of a carrier deficient layer made of In2O3 thin film annealed in oxygen atmosphere (InO:O) and an electron injection layer made of In2O3 thin film annealed in air (InO:A). Compared with the InO:A/InO:A TFT with only air annealing, the field-effect mobility of InO:O/ InO:A TFT with two-step annealing process was improved from 0.04 to 5.11 cm2/Vs, the on/off current ratio was ameliorated from 4.6 × 105 to 7.6 × 107 A, while the VTH is decreased from 12.5 to 4.7 V under the positive bias stressing (PBS). It is confirmed that the excessive oxygen vacancies are produced by annealing the thin film in the air. The electrical performance of the InO:O/InO:A TFTs with two-step annealing process is greatly improved due to the formation of a low defect state and high carrier concentration electron transport layer, through the combination of the carrier transport layer and the carrier injection layer. These optimized electrical properties indicate an important step toward achieving transparent, high performance, and low-temperature metal oxides TFTs.","PeriodicalId":15130,"journal":{"name":"Journal of Asian Ceramic Societies","volume":"10 1","pages":"660 - 665"},"PeriodicalIF":2.3,"publicationDate":"2022-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44553672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Preparation and properties of metakaolin-based porous geopolymer formed with sodium perborate 过硼酸钠改性偏高岭土基多孔地质聚合物的制备与性能

IF 2.3 4区材料科学

Journal of Asian Ceramic Societies Pub Date : 2022-07-03 DOI: 10.1080/21870764.2022.2088755

Sasijuta Wattanarach, S. Supothina, P. Thavorniti

引用次数: 3

Evolution of crystals in SiO2-Fe2O3-Al2O3 system ceramics derived from copper slag 铜渣制备的SiO2-Fe2O3-Al2O3系陶瓷的结晶演化

IF 2.3 4区材料科学

Journal of Asian Ceramic Societies Pub Date : 2022-07-03 DOI: 10.1080/21870764.2022.2083476

Anji Lin, Yu Li, Weitao Tang

{"title":"Evolution of crystals in SiO2-Fe2O3-Al2O3 system ceramics derived from copper slag","authors":"Anji Lin, Yu Li, Weitao Tang","doi":"10.1080/21870764.2022.2083476","DOIUrl":"https://doi.org/10.1080/21870764.2022.2083476","url":null,"abstract":"ABSTRACT Copper slag is a kind of huge metallurgical residue with fayalite as the main phase. Due to the oxidation of fayalite to quartz and hematite during sintering process, quartz became the main phase of ceramics when it contained large proportion of copper slag. The internal stress in the ceramic formed due to the change of α to β increases the potential risk of cracks in the quartz cooling process. In this paper, in order to reduce the precipitation of quartz phase, natural diopside rich in CaO and MgO was introduced into the copper slag-based ceramics. A batch of ceramics were prepared with 50 wt.% copper slag and 5 ~ 25 wt.% diopside as raw materials at different sintering temperatures. Evolution of crystals and densification process for the ceramics were investigated through physical property tests, including XRF, XRD, SEM, EDS and FACTSAGE calculation. The results indicated that fayalite particles derived from the slag formed a core-shell structure during the oxidation process, with the inner core dominated by silica and the outer shell enriched by iron oxide. It was observed that MgO and Fe2O3 reacted outside the shell to form mafic spinel (Fe, Mg) Fe2O4, which greatly promoted the reaction of Ca2+ with SiO2 in the core areas to form anorthite. As the amount of diopside increased, more mafic spinel and anorthite formed, while less quartz appeared. The addition of diopside to the ceramic body did not change its initial sintering temperature at 1170°C but significantly improved its bending strength from 35.8 MPa to 50.3 MPa with 5 ~ 20 wt.% addition of diopside, and more diopside would result in excessive flux and over firing.","PeriodicalId":15130,"journal":{"name":"Journal of Asian Ceramic Societies","volume":"10 1","pages":"545 - 555"},"PeriodicalIF":2.3,"publicationDate":"2022-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48218281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The preparation of luminescent and reversible thermochromic Mn-doped Ca-Zn-Al-O inorganic materials 发光可逆热致变色mn掺杂Ca-Zn-Al-O无机材料的制备

IF 2.3 4区材料科学

Journal of Asian Ceramic Societies Pub Date : 2022-07-03 DOI: 10.1080/21870764.2022.2094558

V. Loryuenyong, Pitsinee Juikatu, Pichanut Sirisukha, Ukrit Kumleing, A. Buasri

引用次数: 0

Improving the sintering performance and dielectric properties of thermally conductive low-temperature co-fired alumina by controlling the firing atmosphere 控制烧结气氛改善导热低温共烧氧化铝的烧结性能和介电性能

IF 2.3 4区材料科学

Journal of Asian Ceramic Societies Pub Date : 2022-07-03 DOI: 10.1080/21870764.2022.2099514

Koichi Shigeno, Takumi Nagata, H. Fujimori

引用次数: 0

Effect of aprotic solvent on characteristics of Al2O3 ceramic hollow fiber substrates prepared by phase inversion for hydrogen permeation applications 非质子溶剂对相转化法制备Al2O3陶瓷中空纤维基板性能的影响

IF 2.3 4区材料科学

Journal of Asian Ceramic Societies Pub Date : 2022-07-03 DOI: 10.1080/21870764.2022.2104712

E. Magnone, Seung Hwan Lee, M. Shin, X. Zhuang, Jae Yeon Hwang, Jeong In Lee, J. Park

{"title":"Effect of aprotic solvent on characteristics of Al2O3 ceramic hollow fiber substrates prepared by phase inversion for hydrogen permeation applications","authors":"E. Magnone, Seung Hwan Lee, M. Shin, X. Zhuang, Jae Yeon Hwang, Jeong In Lee, J. Park","doi":"10.1080/21870764.2022.2104712","DOIUrl":"https://doi.org/10.1080/21870764.2022.2104712","url":null,"abstract":"ABSTRACT The phase inversion procedure was used to prepare Al2O3 ceramic hollow fiber substrates (AlCHFS) utilizing the dimethyl sulfoxide (DMSO), N,N-dimethylacetamide (DMAC), and 1-methyl-2-pyrrolidone (NMP) aprotic solvents. Different aprotic solvent and non-solvent (water) interactions were used to calibrate different ceramic oxide substrates. AlCHFS with an asymmetrical structure consisting of a finger-like structure on the lumen side and a pore structure on the shell side was obtained using an aprotic solvent/non-solvent pair with a high total Hildebrand solubility (δt). As the aprotic strength was reduced, the finger-like structure on the shell sides became more prominent. Hydrogen permeation studies conducted between 350°C and 450°C reveal that the Pd-coated AlCHFS produced from DMAC aprotic solvent has the maximum hydrogen flux (~0.24 mol m−2 s−1). The activation energy for the thermally activated hydrogen transport process through the Pd-coated AlCHFSs is determined to be around 11.06–14.61 kJ mol−1 in the temperature range of 350°C to 450°C, and it increases linearly with increasing surface porosity of ceramic oxide substrate.","PeriodicalId":15130,"journal":{"name":"Journal of Asian Ceramic Societies","volume":"10 1","pages":"674 - 686"},"PeriodicalIF":2.3,"publicationDate":"2022-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48418017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Skewness: Important parameter to affect the dielectric properties of BaTiO3 偏斜度：影响BaTiO3介电性能的重要参数

IF 2.3 4区材料科学

Journal of Asian Ceramic Societies Pub Date : 2022-07-03 DOI: 10.1080/21870764.2022.2097603

Jong-Chan Lim, Sang‐il Kim, Gyo-Hee Hong, Ji-Hyun Hwang, Heesun Yang, Kyu Hyoung Lee, Hyun-Sik Kim

{"title":"Skewness: Important parameter to affect the dielectric properties of BaTiO3","authors":"Jong-Chan Lim, Sang‐il Kim, Gyo-Hee Hong, Ji-Hyun Hwang, Heesun Yang, Kyu Hyoung Lee, Hyun-Sik Kim","doi":"10.1080/21870764.2022.2097603","DOIUrl":"https://doi.org/10.1080/21870764.2022.2097603","url":null,"abstract":"ABSTRACT Recent electric vehicle multilayer ceramic capacitors (MLCCs) adopt submicron-sized solid-state synthesized BaTiO3 for dielectric layers for high reliability. Unlike BaTiO3 nanoparticles synthesized by the hydrothermal method, particle size distribution control becomes demanding with the solid-state synthesis. Here, BaTiO3 with 260 and 390 nm average particle sizes were synthesized using a solid-state method, and the dielectric properties of the samples sintered at 1100, 1150, and 1200°C were studied in terms of particle size distributions. Notably, BaTiO3 samples sintered with 260 nm particles with smaller grain sizes and lower tetragonality exhibited higher dielectric properties than those prepared with 390 nm particles. The reasons behind the high dielectric performance were found in the lower skewness of the 260 nm particles, which produced a higher density of the sintered sample. For electric vehicle MLCC BaTiO3, engineering their skewness is as important as controlling their grain size or tetragonality for high dielectric performance.","PeriodicalId":15130,"journal":{"name":"Journal of Asian Ceramic Societies","volume":"10 1","pages":"613 - 620"},"PeriodicalIF":2.3,"publicationDate":"2022-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47365498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Influence of ferric oxide content on performance of ferrosilicate glasses and glass fibers 氧化铁含量对硅铁玻璃及玻璃纤维性能的影响

IF 2.3 4区材料科学

Journal of Asian Ceramic Societies Pub Date : 2022-07-03 DOI: 10.1080/21870764.2022.2088759

Qu Xiaoyan, Liu Jianan, Zhang Meimei, Zhu Chaofeng, Mao Xinlin

引用次数: 0

Interfacial engineering of ZrO2 metal-insulator-metal capacitor using Al2O3/TiO2 buffer layer for improved leakage properties 利用Al2O3/TiO2缓冲层改善ZrO2金属-绝缘体-金属电容器泄漏性能的界面工程

IF 2.3 4区材料科学

Journal of Asian Ceramic Societies Pub Date : 2022-07-03 DOI: 10.1080/21870764.2022.2101216

Heecheol Shin, Hyobin Choi, Jaeseong Lim, Wan-Chia Lee, K. Mohit, Younsoo Kim, H. Jung, Hanjin Lim, H. Seo

{"title":"Interfacial engineering of ZrO2 metal-insulator-metal capacitor using Al2O3/TiO2 buffer layer for improved leakage properties","authors":"Heecheol Shin, Hyobin Choi, Jaeseong Lim, Wan-Chia Lee, K. Mohit, Younsoo Kim, H. Jung, Hanjin Lim, H. Seo","doi":"10.1080/21870764.2022.2101216","DOIUrl":"https://doi.org/10.1080/21870764.2022.2101216","url":null,"abstract":"ABSTRACT The continuous scale-down of dynamic random-access memory (DRAM) requires shrinkage of high aspect ratio metal-insulator-metal (MIM) capacitance along with the successful suppression of its leakage current to maintain desired levels of charge storage and retention. As the dimensions of stacked insulating dielectric and metal electrodes in the MIM capacitor are currently <10 nm, interfacial mixing has a large impact on the reliability of the capacitor. This is because defects and secondary interface oxides significantly alter the physicochemical properties of MIM capacitors. The methodology required to characterize ultrathin interfaces in relation to the performance of MIM devices is highly challenging due to its physical and chemical complexities of interface between dielectric and electrode. In this study, a ZrO2-based dielectric film and its interface (with an ultrathin TiO2/Al2O3 buffer layer) are analyzed using angle-resolved X-ray photoelectron spectroscopy (ARXPS), spectroscopic ellipsometry (SE), and temperature dependent I–V analysis for a DRAM MIM capacitor. The composite dielectric layer included either Al2O3 on the bottom or Al2O3/TiO2 between the TiN electrode and ZrO2. This study suggests an effective metrology approach to characterize ultrathin MIM capacitors and the important role of interfacial stabilization using a buffer layer for the effective control of leakage current.","PeriodicalId":15130,"journal":{"name":"Journal of Asian Ceramic Societies","volume":"10 1","pages":"649 - 659"},"PeriodicalIF":2.3,"publicationDate":"2022-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49342162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3