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状,最终形成多边星形.第2个放热区间温度对应云母晶体的析出,析出晶体呈片层状,在星形晶体间析出.随着玻璃中Fe_2O_3含量的增加,玻璃转变温度和放热峰温度都逐渐提高,而且2个放热峰温度的间隔程度增加.同时也发现ZrO_2和Fe_2O_3的加入都抑制了云母晶体的析出. 关键词:微晶玻璃; 成核剂; 析晶; 可加工微晶玻璃; glass-ceramics; nucleating agents; crystallization; machinable glass-ceramics; [全文内容正在添加中] ......
SOEC堆的工作温度下可实现密封. 关键词:微晶玻璃; SOEC; 制氢; 热膨胀系数; glass-ceramics; SOEC; hydrogen; coefficient of thermal expansion (α); [全文内容正在添加中] ......
Near-infrared Quantum Cutting in Pr3+-Yb3+ Co-doped Oxyfluoride Glass Ceramics Containing CaF2 Nanocrystals章丽丽,XU Jie,胡一晨,CHEN Guorong,WANG ZhongjianSchool of Materials Scence and Engineering, East China University of Science and Technology摘 要:The Pr3+-Yb3+ co-doped oxyfluoride glass-ceramics containing CaF2 nanocrystals were obtained by thermal......
phases in the glass-ceramics were identified by X-ray diffraction. The microstructures of the glass-ceramics were observed by scanning electron microscopy. The results indicate that for this glass, heat treatment has great effects on volume fraction of the crystalline phases and the microstructures of the glass-ceramics, whereas the effect on the type of the crystalline phases precipitated is small......
: Hydroxyapatite/mica biomedical glass-ceramics were prepared by powder metallurgy. The effects of sintering temperature and composition on bending strength, fracture toughness and hardness were studied... properties are improved. For the glass-ceramics with 80% mica, the bending strength increases from 55.1 MPa after sintered at 1 000 ℃ to 120.1 MPa after being sintered at 1 100 ℃. With the increase of mica......
-treated at the first crystallization temperature, the glasses gave transparent glass-ceramics in which rare earth containing fluorite-type nanocrystals of about 17.2 nm in diame-ter uniformly precipitated in the glass matrix. Compared with the glasses before heat treatment, the glass-ceramics exhibited very strong blue up-conversion luminescence under 800 nm light excitation. Rare earth containing......
susceptive to H2 O with second harmonic observation. Besides, the glass-forming region of Ge S2-Ga2S3-Li2 S system was further studied by the conventional melt-quenching method.Ge S2-Ga2S3-Li2 S glass-ceramics containing IR Li2Ga2 Ge S6 nonlinear nanocrystals were obtained at a more carefully controlled heating rate.关键词:......
on sintering and properties of CaO-Al2O3-SiO2 system glass-ceramics CHENG Jun1,2, CHEN Guo-hua1,2, LIU Xin-yu1,2, XU Hua-rui1,2 (1. Department of Information Materials Science and Engineering...: Glass-ceramics of CaO-Al2O3-SiO2 system doped with ceria were prepared by sintering method and were characterized by differential thermal analysis (DTA), X-ray diffractometry (XRD), scanning electron......
; 文献标志码:A Preparation and white light emission regulation of Ce/Tb/Mn co-doped ZnO-SrO-P2O5 glass-ceramics WANG Jia-xin1, CHEN..., spectroscopic characterizations and luminescence properties of the glass-ceramics were investigated by X-ray diffraction diffractometer (XRD), fluorescent spectrometer and International Commission......
surface crystallization during crystallization process. LAGP glass-ceramics after different heat treatments have the same crystalline phases determined as major phase LiGe2(PO4)3, with AlPO4 and GeO2...Crystallization Kinetics of Lithium Aluminum Germanium Phosphate Glass by DSC Technique何坤,祖成奎Quartz and Special Glasses Institute, China Building Materials Academy摘 要:
