共搜索到24152条信息,每页显示10条信息,共2416页。用时:0小时0分0秒531毫秒
to the abnormal peak values of heat capacity induced by magnetic phase transition below 20 K [2-3]. The application of these materials contributed to the breakthroughs of the traditional G-M cryocooler and pulse... K, has also been commonly used as the magnetic regenerative material at cryogenic temperatures in the past 10 years, thanks to its relatively high heat capacity induced by magnetic phase transition......
AN ISOBAR-ISOTHERMAL PHASE DIAGRAM OF THE Nd-Fe-B SYSTEM AT ATMOSPHERIC PRESSURE AND 1000℃郝士明,徐维摘 要:<正> An isothermal section of Nd-Fe-B system at 1000℃ and the phase equilibrium relationship in Fe-Ndand Nd-B binary systems were investigated with diffusion couple by means of metallographic observation,electron microprobe analysis and X-ray......
is set at 1 cm-1. The final test result is the average of three test results. Figure 3 Conductivity test diagram 2.3.6 AC impedance spectroscopy The properties of the solid phase (hydrates and unhydrated... J. Cent. South Univ. (2021) 28: 1665-1678 DOI: https://doi.org/10.1007/s11771-021-4725-7 Hydration phase and pore structure evolution of hardened cement paste at elevated temperature XIANG Yu(向宇)1......
......
Isothermal Section of Phase Diagram of the Ternary System Co-Dy-Pr at 500℃韦相忠,刘敬旗摘 要:1IntroductionRef.1,2reportedthestudyresultsofCoPrbinarysystem.Theyobservedtheexistenceofnineintermetaliccompounds,Pr2Co17,...关键词:......
New T-x Phase Diagram in the System CeH2-CeH3 Investigated by DSC王龙妹摘 要:NewTxPhaseDiagramintheSystemCeH2CeH3InvestigatedbyDSCWangLongmei(王龙妹)(CentralIron&StelResearchInstitute,Beijing100081,Chin...关键词:......
Primary study of the isothermal phase diagram of the Cu2O-Al2O3-SiO2 ternary system at 1150℃ in airXIAO Qiuguo1,2),ZHAO Xinhua1),HUANG Ling1),and DENG Xuebin1) 1) Department of Chemistry,Beijing...">The isothermal phase diagram of the Cu2O-Al2O3-SiO2 ternary system at 1150°C was reported for the samples which were prepared from sol-gel method and quenched by water after being heated at 1150°C for 12......
Preparation of cobalt-modified magnetite and its magnetic properties YANG Xi-yun(杨喜云)1, GONG Zhu-qing(龚竹青)1, LIU Feng-liang(刘丰良)2, HUANG Jian(黄 坚)2 (1. School of Metallurgical Science... of the coercivity is attributed to the uniaxial magnetic anisotropy and magnetocrystalline anisotropy of cobalt-ferrite itself. Key words: magnetite; cobalt; magnetic property CLC number: TQ586.1......
compound. No ternary compound is found. Key words: Fe-Ti-Zr; diffusion triple; isothermal section; phase diagram  ... solutions, α- and β-phase, and liquid with a congruent minimum at 50% Zr[4]. For the phase diagram of the Fe-Zr system, however, there still remain uncertainties and controversies even about......
researches in Me-S-O system. However, some problems remain unsolved for plotting such Me-S-O predominance area diagram. First, the analysis of phase rule is not emphasized in the traditional drawing methods...-topological diagram of Me-S-O system with Pb-S-O and Zn-S-O systems as examples in this work. 2 New approaches based on phase rule and mathematical topological theory 2.1 Phase rule analysis......