发布求助
文献互助 智能选刊 最新文献

Journal of the Ceramic Society of Japan最新文献

筛选
英文 中文
Direct observation of intrinsic core structure of a partial dislocation in ZnS ZnS中部分位错本征核结构的直接观察
4区 材料科学
Journal of the Ceramic Society of Japan Pub Date : 2023-10-01 DOI: 10.2109/jcersj2.23065
Bin Feng, Sena Hoshino, Bin Miao, Jiake Wei, Yu Ogura, Atsutomo Nakamura, Eita Tochigi, Katsuyuki Matsunaga, Yuichi Ikuhara, Naoya Shibata
{"title":"Direct observation of intrinsic core structure of a partial dislocation in ZnS","authors":"Bin Feng, Sena Hoshino, Bin Miao, Jiake Wei, Yu Ogura, Atsutomo Nakamura, Eita Tochigi, Katsuyuki Matsunaga, Yuichi Ikuhara, Naoya Shibata","doi":"10.2109/jcersj2.23065","DOIUrl":"https://doi.org/10.2109/jcersj2.23065","url":null,"abstract":"Mobility of dislocations in compound semiconductor materials can be changed by light illumination because the core structure of dislocations is supposed to be reconstructed by photoexcited carriers. However, the atomic structure of such dislocation cores has not been observed and is still poorly understood. In this study, we introduced dislocations in ZnS, one of the typical II–VI type compound semiconductors, by deformation under darkness, and investigated the atomic structure of the dislocation cores using scanning transmission electron microscopy (STEM) combined with theoretical calculations. Direct observation of the Zn core partial dislocation revealed that its atomic structure is in good agreement with the theoretically predicted dislocation core without electron trapping. Moreover, the dislocations were observed to move along a slip plane during the observation. These results indicate that the electron-trap-free dislocation is mobile and could be the origin of plasticity in the dark.","PeriodicalId":17246,"journal":{"name":"Journal of the Ceramic Society of Japan","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135372803","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
Grain boundary segregation of Y and Hf dopants in α-Al<sub>2</sub>O<sub>3</sub>: A Monte Carlo simulation with artificial-neural-network potential and density-functional-theory calculation α-Al&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt;中Y和Hf掺杂剂的晶界偏析:用人工神经网络电位和密度泛函理论计算的Monte Carlo模拟
4区 材料科学
Journal of the Ceramic Society of Japan Pub Date : 2023-10-01 DOI: 10.2109/jcersj2.23044
Tatsuya Yokoi, Akihiro Hamajima, Yu Ogura, Katsuyuki Matsunaga
{"title":"Grain boundary segregation of Y and Hf dopants in α-Al&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt;: A Monte Carlo simulation with artificial-neural-network potential and density-functional-theory calculation","authors":"Tatsuya Yokoi, Akihiro Hamajima, Yu Ogura, Katsuyuki Matsunaga","doi":"10.2109/jcersj2.23044","DOIUrl":"https://doi.org/10.2109/jcersj2.23044","url":null,"abstract":"Artificial-neural-network (ANN) interatomic potentials for Al–Y–O and Al–Hf–O systems are constructed using density-function-theory (DFT) data and combined with Monte Carlo (MC) simulations in order to predict Y and Hf segregation behavior at the ∑7(4510)/[0001] grain boundary (GB) in α-Al2O3. The ANN potentials are demonstrated to accurately predict preferential substitutional sites of not only an isolated but also multiple dopant ions. This enables us to circumvent DFT calculations for MC trial moves, thereby greatly reducing computational cost. There is a tendency that both Y and Hf ions substitute for 6-fold Al ions with elongated Al–O bonds at the GB and have coordination numbers greater than 6 after structural relaxation. This may suggest that even at the GB, Y and Hf ions prefer atomic environments in Y- and Hf-containing oxides with 7- and 8-fold coordination. Furthermore, effects of dopant species and concentrations on band-gap reduction at the GB are elucidated by analyzing partial density of states for the dopant-segregated GBs. The ANN-MC method with DFT analysis will pave the way for systematically determining atomic and electronic structures of GBs involving dopants, as demonstrated in this work.","PeriodicalId":17246,"journal":{"name":"Journal of the Ceramic Society of Japan","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135372986","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
Synthesis and characterization of Ti<sub>1−2</sub><i><sub>x</sub></i>(FeNb)<i><sub>x</sub></i>O<sub>2</sub> solid solutions for visible-light-active photocatalyst 合成和表征Ti&lt; sub&gt; 1−2 & lt; / sub&gt; & lt; i&gt; & lt; sub&gt; x&lt; / sub&gt; & lt; / i&gt; (FeNb) & lt; i&gt; & lt; sub&gt; x&lt; / sub&gt; & lt; / i&gt; O&lt; sub&gt; 2 & lt; / sub&gt;可见光活性光催化剂的固溶体
4区 材料科学
Journal of the Ceramic Society of Japan Pub Date : 2023-10-01 DOI: 10.2109/jcersj2.23013
Takuya Nishio, Hidenobu Murata, Yasuaki Tokudome, Atsushi Nakahira
{"title":"Synthesis and characterization of Ti&lt;sub&gt;1−2&lt;/sub&gt;&lt;i&gt;&lt;sub&gt;x&lt;/sub&gt;&lt;/i&gt;(FeNb)&lt;i&gt;&lt;sub&gt;x&lt;/sub&gt;&lt;/i&gt;O&lt;sub&gt;2&lt;/sub&gt; solid solutions for visible-light-active photocatalyst","authors":"Takuya Nishio, Hidenobu Murata, Yasuaki Tokudome, Atsushi Nakahira","doi":"10.2109/jcersj2.23013","DOIUrl":"https://doi.org/10.2109/jcersj2.23013","url":null,"abstract":"Ti1−2x(FeNb)xO2 solid solutions were prepared as visible-light-active photocatalysts using a conventional solid-state reaction method. Ti1−2x(FeNb)xO2 solid solutions were obtained below x = 0.25 without any secondary phase. They exhibited light absorption in the visible region. The strong absorption corresponding to the bandgap shifted to the lower energies with increasing x. Because the valence band maxima of the samples remained unchanged, the conduction band minima shifted to lower energies. The photocatalytic activity was evaluated based on the degradation of methylene blue under UV–visible light irradiation. The photocatalytic activity of Ti1−2x(FeNb)xO2 solid solutions tends to improve with increasing x. Clear visible light photocatalytic activity corresponding to the band gap was also observed. Thus, these materials are promising candidates for environmental applications.","PeriodicalId":17246,"journal":{"name":"Journal of the Ceramic Society of Japan","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135372993","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
In-situ observation of magnetic domain structures in nanocrystalline soft magnetic materials by differential-phase-contrast scanning transmission electron microscopy 用差相衬扫描透射电镜原位观察纳米晶软磁材料的磁畴结构
4区 材料科学
Journal of the Ceramic Society of Japan Pub Date : 2023-10-01 DOI: 10.2109/jcersj2.23061
Takehito Seki, Masaya Takamoto, Masayuki Ishihara, Haruhito Ishio, Yuichi Ikuhara, Naoya Shibata
{"title":"In-situ observation of magnetic domain structures in nanocrystalline soft magnetic materials by differential-phase-contrast scanning transmission electron microscopy","authors":"Takehito Seki, Masaya Takamoto, Masayuki Ishihara, Haruhito Ishio, Yuichi Ikuhara, Naoya Shibata","doi":"10.2109/jcersj2.23061","DOIUrl":"https://doi.org/10.2109/jcersj2.23061","url":null,"abstract":"Soft and hard magnetic materials are becoming increasingly important for energy efficiency in transformers, motors, and inductors. To reveal the microscopic origins of their magnetic properties, it is crucial to observe magnetic domain structures with an external magnetic field at high spatial resolution. Differential-phase-contrast scanning transmission electron microscopy (DPC STEM) is expected to be a powerful technique for directly visualizing electromagnetic fields inside materials even down to atomic dimensions. In this study, we investigated the capability of DPC STEM for in-situ observation of soft magnetic materials. We observed three different soft magnetic materials with various coercivities and found clear differences in the observation results. These results suggest that DPC STEM has a great capability to directly reveal the microscopic origin of magnetic properties in magnetic materials.","PeriodicalId":17246,"journal":{"name":"Journal of the Ceramic Society of Japan","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135372995","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
Global structure optimization following imaginary phonon modes accelerated by machine learning potentials in Cu, Ag, and Au Cu, Ag和Au中机器学习电位加速的假想声子模式下的全局结构优化
4区 材料科学
Journal of the Ceramic Society of Japan Pub Date : 2023-10-01 DOI: 10.2109/jcersj2.23056
Takuya Naruse, Atsuto Seko, Isao Tanaka
{"title":"Global structure optimization following imaginary phonon modes accelerated by machine learning potentials in Cu, Ag, and Au","authors":"Takuya Naruse, Atsuto Seko, Isao Tanaka","doi":"10.2109/jcersj2.23056","DOIUrl":"https://doi.org/10.2109/jcersj2.23056","url":null,"abstract":"Algorithms of crystal structure prediction produce many different structures, some of which are dynamically unstable. Following the imaginary phonon modes obtained by lattice dynamics calculations, dynamically stable structures can be rationally derived from unstable structures. Following the imaginary phonon modes, however, generally requires lengthy and often prohibitively expensive calculations. In this study, we employ polynomial machine learning potentials to predict globally stable and metastable structures following the imaginary phonon modes. As a result, we discover many dynamically stable and metastable structures efficiently, and the face-centered cubic structure is the globally stable structure consistent with experimental reports for the elemental Cu, Ag, and Au.","PeriodicalId":17246,"journal":{"name":"Journal of the Ceramic Society of Japan","volume":"168 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135372636","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 effect of annealing atmospheres on the segregation behaviors in Ti-doped α-Al<sub>2</sub>O<sub>3</sub> grain boundary 退火气氛对ti掺杂α-Al&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt;晶界
4区 材料科学
Journal of the Ceramic Society of Japan Pub Date : 2023-10-01 DOI: 10.2109/jcersj2.23054
Chuchu Yang, Bin Feng, Naoya Shibata, Yuichi Ikuhara
{"title":"The effect of annealing atmospheres on the segregation behaviors in Ti-doped α-Al&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt; grain boundary","authors":"Chuchu Yang, Bin Feng, Naoya Shibata, Yuichi Ikuhara","doi":"10.2109/jcersj2.23054","DOIUrl":"https://doi.org/10.2109/jcersj2.23054","url":null,"abstract":"The effect of different annealing atmospheres on the atomic structures and dopant segregation behaviors in Ti-doped grain boundaries (GBs) of alumina was studied by using atomic-resolution scanning transmission electron microscopy, energy dispersive X-ray spectroscopy and electron energy loss spectroscopy. In addition to the Ti dopants, Ca impurities also segregated to the GBs. It is found that the atomic structure of Ti-doped GBs is symmetric in the reducing atmosphere, while it changes into an asymmetric one with further annealing in air. The different GB structures and segregation behaviors of Ti and Ca in air may result from the partially oxidization of Ti3+ to Ti4+ and less oxygen vacancies when annealed in air. Our results indicate that the annealing atmosphere strongly affect GB segregation behaviors in alumina.","PeriodicalId":17246,"journal":{"name":"Journal of the Ceramic Society of Japan","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135372800","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
Enhanced reduction of thermal conductivity across kink dislocation textures in magnesium oxide 氧化镁中扭结位错织构间热导率的增强降低
4区 材料科学
Journal of the Ceramic Society of Japan Pub Date : 2023-10-01 DOI: 10.2109/jcersj2.23066
Wataru Sekimoto, Susumu Fujii, Masato Yoshiya
{"title":"Enhanced reduction of thermal conductivity across kink dislocation textures in magnesium oxide","authors":"Wataru Sekimoto, Susumu Fujii, Masato Yoshiya","doi":"10.2109/jcersj2.23066","DOIUrl":"https://doi.org/10.2109/jcersj2.23066","url":null,"abstract":"Our understanding on how dislocation textures quantitatively affect thermal conductivity has been limited. We investigate the impact of kink dislocations on phonon thermal conduction in MgO by molecular dynamics, through changing edge and screw components in kink dislocations. The thermal conductivity is almost independent of the length of the edge component, but is rather reduced significantly with increasing the length of screw component, resulting in lower thermal conductivity than perfect edge dislocations. This reveals the combined effect of the edge and screw components on thermal conductivity beyond the simple description as one-dimensional obstacles and linear elastic strain field. Atomic contributions to thermal conductivity show that not only atoms in the vicinity of the kink dislocation cores but also those away from the cores exhibit suppressed thermal conductivity compared to the perfect edge dislocations. These results indicate that it is possible to efficiently reduce thermal conductivity in complex dislocation textures in real materials.","PeriodicalId":17246,"journal":{"name":"Journal of the Ceramic Society of Japan","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135372977","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
Design of oxygen-storage/release materials with high-speed of oxygen-release in rare-earth trivalent cation M<sup>3+</sup>-doped ceria-zirconia system 稀土三价阳离子M&lt;sup&gt;3+&lt;/sup&gt;掺杂二氧化锆体系中高速氧释放储放材料的设计
4区 材料科学
Journal of the Ceramic Society of Japan Pub Date : 2023-10-01 DOI: 10.2109/jcersj2.23078
Keigo Aihara, Hiroki Uede, Kyouhei Kitagawa, Masasuke Yamaba, Yusuke Hidaka, Tomoharu Itoh, Kenji Okamoto, Shingo Katayama
{"title":"Design of oxygen-storage/release materials with high-speed of oxygen-release in rare-earth trivalent cation M&lt;sup&gt;3+&lt;/sup&gt;-doped ceria-zirconia system","authors":"Keigo Aihara, Hiroki Uede, Kyouhei Kitagawa, Masasuke Yamaba, Yusuke Hidaka, Tomoharu Itoh, Kenji Okamoto, Shingo Katayama","doi":"10.2109/jcersj2.23078","DOIUrl":"https://doi.org/10.2109/jcersj2.23078","url":null,"abstract":"The good correlation between the speed of oxygen-release versus the oxygen-ion conductivity was found in ceria-zirconia under 33 mol % of Ce content. The crystal lattice expansion was also found to affect the speed of oxygen-release in ceria-zirconia with Ce content of 33–66 mol %. Because these properties can be controlled by rare-earth trivalent cation M3+-doping in ceria-zirconia, the state of M3+ and vacancies formed by substituting with M3+ has been investigated in typical model samples of M3+-doped ceria-zirconia using X-ray powder diffraction and X-ray absorption fine structure. It was experimentally clear that the lattice constant increased with increasing the ionic radius of M3+-doped in (Ce0.5Zr0.4M0.1)O1.95. It was also found that M3+ with higher ligand-field stabilization energy of f-orbitals tended to be fully octahedral-coordinated by eight oxygen ions and form free oxygen vacancies un-associated with M3+, possibly leading to the high speed of oxygen-release.","PeriodicalId":17246,"journal":{"name":"Journal of the Ceramic Society of Japan","volume":"307 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135372814","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
Low-temperature synthesis of submicron-sized layered sodium titanate crystals using citrate salts 柠檬酸盐低温合成亚微米级层状钛酸钠晶体
4区 材料科学
Journal of the Ceramic Society of Japan Pub Date : 2023-10-01 DOI: 10.2109/jcersj2.23112
Fumitaka Hayashi, Yongsu Kim, Masaki Moriwaki, Yosuke Moriya, Katsuya Teshima
{"title":"Low-temperature synthesis of submicron-sized layered sodium titanate crystals using citrate salts","authors":"Fumitaka Hayashi, Yongsu Kim, Masaki Moriwaki, Yosuke Moriya, Katsuya Teshima","doi":"10.2109/jcersj2.23112","DOIUrl":"https://doi.org/10.2109/jcersj2.23112","url":null,"abstract":"Layered sodium titanates are extremely advantageous for use in the energy and environmental fields. Herein, submicron-sized layered sodium titanate crystals were synthesized at low temperatures via solid-state reaction using trisodium citrate as the Na source. Characterization results including in situ observations showed that the decomposition of trisodium citrate proceeded at 300–350 °C, and the resulting activated Na species reacted with TiO2 at temperatures of 520 °C and above. This study therefore provides an economically viable method for the synthesis of layered titanate materials.","PeriodicalId":17246,"journal":{"name":"Journal of the Ceramic Society of Japan","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135372815","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
Carrier control in SnS by doping: A review SnS中掺杂控制载流子的研究进展
4区 材料科学
Journal of the Ceramic Society of Japan Pub Date : 2023-10-01 DOI: 10.2109/jcersj2.23098
Issei Suzuki
{"title":"Carrier control in SnS by doping: A review","authors":"Issei Suzuki","doi":"10.2109/jcersj2.23098","DOIUrl":"https://doi.org/10.2109/jcersj2.23098","url":null,"abstract":"Tin sulfide (SnS) is a semiconductor composed of abundant and non-toxic elements and has potential applications as a light absorbing layer in thin-film solar cells and a thermoelectric material. While controlling the carrier type (n- or p-type conduction) and carrier concentration of SnS by impurity doping has been intensively studied both experimentally and theoretically since 2010s, no comprehensive discussion of them has been made. This review is motivated to provide researchers with an overview of SnS doping techniques including following topics. The importance and effects of carrier control on the performance of SnS-based photovoltaics and thermoelectric devices are at first discussed. Subsequently, the electrical property of the undoped SnS resulting from its intrinsic defects are summarized. Also, the characteristics of p- and n-type dopings to SnS with various dopants are summarized and compared with the doping systems to other IV–VI group semiconductors, particularly SnSe. The final section presents a perspective on the current status of research in SnS carrier control and potential future research directions.","PeriodicalId":17246,"journal":{"name":"Journal of the Ceramic Society of Japan","volume":"149 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135372637","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信
小红书