Y.H. Xia 1)
,
T.P. Lou 1)
,
Z.T. Sui 1) and B. Li 2) 1) School of Material & Metallurgy
,
Northeastern University
,
Shenyang 110006
,
China 2) Jiamusi University
,
Jiamusi 154007
,
China
金属学报(英文版)
The fractal and spinodal decomposition models combined Monte Carlo method were used in computer simulation of phase separation from CaO MgO Fe 2O 3 Al 2O 3 SiO 2 glass. The fractal dimension was applied to quantitative analysis. The mechanism of phase separation was investigated. The results showed that the fractal dimensions and simulated micrographs of phase separation were in good agreement with the experimental results. And the mechanism of phase separation was spinodal decomposition.
关键词:
glass
,
null
,
null
,
null
,
null
,
null
,
null
Di Cao
,
Yuan Wu
,
Hui Wang
,
Xiong-Jun Liu
,
Z. P. Lu
金属学报(英文版)
doi:10.1007/s40195-016-0374-5
Effects of nitrogen addition on glass formation and mechanical properties of the Ti42.5Cu40Zr10Ni5Sn2.5metallic glass were systematically investigated. It was found that a small amount of nitrogen addition facilitated the glass formation by suppressing formation of the competing eutectic structure. Unlike large atomic size elements such as Hf and Pd which usually deteriorate specific strength, nitrogen can also increase the specific strength of the current Ti-based BMGs. The results are not only helpful for understanding glass-forming ability in general, but also useful in developing cost-effective, high-performance Ti-based bulk metallic glasses with enhanced glass-forming ability.
关键词:
Metallic
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glass
,
Glass-forming
,
ability
,
Microalloying
,
Specific
,
strength
罗维昂
,
章壮健
,
周健敏
,
孙云龙
,
严学俭
材料研究学报
镀有TiN 薄膜的玻璃是一种新的“热镜”材料。当TiN 薄膜厚度大于90nm 时,它对红外线的反射率大于75%。小样试验结果表明:使用镀TiN 的窗玻璃比用普通玻璃节省取暖能源50%以上。此外,TiN 薄膜与玻璃的结合力强,它不被酸、碱、海水所腐蚀,时延性好。
关键词:
氯化钛
,
coating
,
glass
材料科学技术（英文）
The similarity and difference between the bond orientational order and pair analysis methods have been first identified with the help of molecular dynamics simulation and the steepest descent minimization of potentials techniques. The binary liquid K-Rb alloys are chosen as an example. Results show that the bond orientational order parameters may be a relevant direct measurement on the perfection of an icosahedron. The PA formula (1551 bonded pairs) is, however, responsible for the total number of various icosahedra. In addition, it is found that pair analysis approach is more sensible to local structure than that for bond orientational order.
关键词:
glass
Y.W.Bao
,
Y.F.Han
,
F.T.Gong
金属学报(英文版)
Stress relaxation of glass is a dualism effect, it often lead to strength degradation in strengthened glass, but on the other hand, it improves the reliability and stressuniformity of glasses. In this work, stress relaxation of soda-lime glass was investigated using three-point bending tests at 400-560℃ which is near the brittle to ductile transition temperature, for enhancing the safety of glass productions and exploring the most economic anneal process. The experimental results show that the speed of stress relaxation increases but the ultimate stress decreases with increasing temperature. The stress uniformity of the glass samples before and after anneal was examined using spherical indentation at arranged testing points. It indicates that the scatter of the local strength measured by the Hertzian indentation is smaller in the anneal glass than in initial specimen, so that the estimated Weibull modulus for the anneal specimen is higher. Furthermore, the strength evaluation by Hertzian indentation and statistical analysis was presented.
关键词:
glass
,
null
,
null
张志旭
,
李宏杰
,
曲海霞
,
冀亮君
,
席建全
贵金属
银层不亮是中低温烧结银浆经常出现的问题.研究了乙基纤维素、玻璃、添加剂及银粉对烧结银层发红的影响.结果表明,乙基纤维素的灰分和玻璃中的重金属氧化物是导致烧结银层发红的重要原因.优化配方使用混合银粉,加入复合添加剂和氧化剂,选用合适的玻璃粉,所得银浆料快速烧结,银层表面白色光某、致密,其粘度、印刷性能、方阻、附着力等各项指标符合要求.
关键词:
金属材料
,
银浆
,
性能
,
中温快烧
,
乙基纤维素
,
玻璃
,
银粉
,
添加剂
Roland Langfeld
,
Miriam Kunze
,
Martin Letz
中国材料进展
doi:10.7502/j.issn.1674-3962.2015.07.10
硅酸锂铝微晶玻璃材料作为零膨胀材料在光学领域,以及作为耐高温材料在壁炉和烤炉方面的应用都极为广泛.介绍了通过熔化陶瓷化法生产的以Li7La3Zr2 O12(LLZO)为主,并以LiSICon结构为主的两种新型微晶玻璃的最新进展,这两种微晶玻璃在室温下10-S/cm范围内都显示出了良好的Li离子导电性能.此外,还介绍了含纳米晶铁电体或顺电晶相的微晶玻璃,这种微晶玻璃应用于高性能电容器所用新型介电材料上.
关键词:
玻璃
,
微晶玻璃
,
介电性能
,
电容器
,
离子导电性
,
固态电解质
,
锂离子电池
葛伟禹
,
陈肖博
,
翟光群
高分子材料科学与工程
利用伯胺分子层与二苯甲酮(BP)构成光引发体系在玻璃表面引发丙烯酸、丙烯酰胺、丙烯酸酯等的自由基接枝聚合.衰减全反射红外光谱、接触角与原子力显微镜的结果证明聚合物成功接枝于玻璃表面.以N,N-二甲基丙烯酰胺(DMAAm)为单体,研究了聚合条件的影响.当原料配比m(BP)∶m(DMAAm)∶m(acetone)=5∶100∶1000,反应时间为5min时,样品的接枝率和单位面积接枝量分别达到了0.330％和0.87mg/cm2,表面形貌发生了明显变化.结果表明接枝有PDMAAm的玻璃表面与丙烯酸树脂的粘接性能有显著提升.
关键词:
玻璃
,
伯胺分子层
,
二苯甲酮
,
紫外光诱导自由基聚合
,
氧化还原引发
,
表面引发自由基接枝聚合
