共搜索到7946条信息,每页显示10条信息,共795页。用时:0小时0分1秒796毫秒
in Fig. 10, the formation of hot tearing can be roughly divided into three stages: (1) Some pores and oxide inclusions accumulate at grain boundaries, as shown in Fig. 10(a); (2) Stress concentration......
are mainly composed of micropores and carbide or carbon oxide precipitated around the original powder boundaries [12] of the PM superalloy during hot isostatic pressing. Although most of the PPB networks......
Xing-mu, LI Yong-xiu. Precipitation crystallization process of yttrium carbonate and size controlling synthesis of ytterium oxide particles[J]. Journal of the Chinese Society of Rare Earths, 2016, 34......
and 1400 °C are illustrated in Figure 1. Calcium oxide, as a possible by-product, has been found in MTA and commercially available C3S [26]. The results show that the powder contained Ca3SiO5.... Synthesis, characterization and antimicrobial activity of nano-crystalline tricalcium silicate bio-cement [J]. Journal of Applied Pharmaceutical Science, 2017, 7: 1-8. DOI: 10.7324/JAPS.2017.71001......
of Shellfish Research, 2009, 28(4): 899-904. [21] SHU Rui, JIANG Xiaosong, SUN Hongliang, et al. Recent researches of the bio-inspired nano-carbon reinforced metal matrix composites[J]. Composites Part... of nacre-like alumina toughened by graphene oxide[J]. Ceramics International, 2019, 45(7): 8081-8086. [34] NAGLIERI V, GLUDOVATZ B, TOMSIA A P, et al. Developing strength and toughness in bio......
): 80-85. YUE Ming, SUN Ning-lei, ZOU Xing, SHAO Jian-chun, LIU Jin-shan, WANG Kui-ting, LU Ye-da. The discussion on hydrolysis precipitation of ferric oxide directly from ferric-ion rich zinc leachate[J......
aluminum alloys sometimes do not meet the performance requirements fully. At this time, aluminum matrix composites with good performance can come in handy [2-4]. As an important member of the nano-carbon material family, graphene has excellent mechanical, electrical and thermal properties, which is considered to be the most attractive nano-reinforced phase for the development of high-performance......
electron back scattered diffraction (EBSD), using an Oxford Instrument C Nano EBSD detector in a high- resolution field emission gun (FEG) SEM (Zeiss Sigma 500). The test was conducted on M2 sample, since... milling process; in facts, the longer the ball milling process is (one, two or three steps), the more the oxide is formed. Despite the protective Ar atmosphere, contamination occurred. Therefore......
amongst the fins and the multiport tubes. It is usually necessary to employ a flux to eliminate the natural oxide film on aluminum surfaces under a strictly controlled gas atmosphere (high-purity nitrogen......
物熔化的温度下进行,使高温离子向它们各自的电极移动.这种方式可以生产Al,Mg,Li,Na和稀土金属,与众不同的是,该工艺能够原位电解月壤,在一个电极上产生纯O2,并在另一电极上产生多种液态金属,而无需任何形式的支持电解质. 图5 熔融氧化物电解法示意图 Fig. 5 Schematic diagram of molten oxide electrolysis SIBILLE等[52-53]认为......