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structure. ANKEM et al [23] researched the silicide formation in Ti-3Al- 8V-6Cr-4Zr-4Mo alloy (β-C) and pointed out that the silicide (Ti, Zr)5Si3 formed in β-C alloy and other similar titanium..., and found that the precipitated dispersion particles were Ti5Si3 phase. Fig. 10 Dispersive particles observed and present in continuous chain Fig. 11 TEM micrographs of silicide in Ti-25V-15Cr-0.3Si alloy......
E.Formation of the thermoelectric candidate chromium silicide by use of a pack-cementation process [J]. Journal of Electronic Materials, 2014, 43(10): 3733-3739. DOI: 10.1007/s11664-014-3100-y. [11] ZHANG Ping, GUO Xi-ping. A comparative study of two kinds of Y and Al modified silicide coatings on an Nb-Ti-Si based alloy prepared by pack cementation technique [J]. Corrosion Science, 2011, 53(12): 4291-4299......
fraction of the Ti2Ni3Si primary dendrites is approximately 35%. During solidification process, the ternary metal silicide Ti2Ni3Si precipitates firstly from the melt as the dendritic primary phase... Mo2Ni3Si/NiSi metal silicide composite coatings [J]. Applied Surface Science, 2003, 214: 190-195. [10] LIU Y, WANG H M. Microstructure and high-temperature sliding wear property of Coss/Co3Mo2Si metal......
on the Mo5SiB2-phase it is argued that B additions increase the fluidity of the silica scale and encapsulate the silicide grains, thereby preventing oxidation induced by cracking. However, studies so far have... on Cr-rich silicide composites consisting of (Cr,Mo)3Si and (Cr,Mo)5Si3 that do not show any signs of pest even after 2 000 h at 500 ℃[9]. Therefore, in this work, polycrystalline, Cr-alloyed MoSi2......
of boriding with the use of the agents containing SiC, a silicide zone was formed [2-5]. The produced nickel silicides were characterized by a high degree of porosity and a reduced hardness in comparison..., and the lowest hardness of HV 996 was measured for (Ni,Co)5Si2 silicide. In many literature data [6-9], the advantageous properties of nickel silicides were reported. Generally, the production of nickel......
of TC11 alloy after thermal exposure at 500 ℃ for 400 h: (a) Silicide phase; (b) α2 phase 3 讨论 热稳定性是热强钛合金的一个重要使用性能,热稳定性是指合金在高温下长时间暴露后,保持室温或低温塑性和韧性的能力.主要看合金长期高温过程中微观组织的变化和氧的污染,如是否析出有序结构相Ti3Al(Sn..., XU Hui-zhong, LIU Zi-quan. Effect of carbon on silicide precipitates during ageing of Ti-60 titanium alloy[J]. Chinese Journal of Materials Research, 2005, 19(5): 499-505. [7] 洪 权, 戚运莲, 赵永庆, 杨冠军. 加工工......
出断裂沿α片层进行的特征,这种现象也在IMI834中存在[13],同时合金塑性下降,如表1所列. 图4 合金中α和β相界面析出硅化物的形貌 Fig.4 Morphology of bright field of silicide precipitation at interlayer of α and β phases boundaries 由表1可看出,Ti60..., HUI Song-xiao, ZHANG Zhu, SHEN Jian-yun. Precipitation mechanism of silicide in BT25y titanium alloy in solution treatment and thermal exposure[J]. Journal of Chinese Electron Microscopy Society......
]. Phys Rev B, 1980, 22(8): 3998-4004. [8] LEE P M. Electronic structure of magnesium silicide and magnesium germanide[J]. Phys Rev, 1964, 135(4A): A1110-A1114. [9] WOOD D M, Zunger A. Electronic structure of generic semiconductors: Antifluorite silicide and Ⅲ-Ⅴcompounds[J]. Phys Rev B, 1986, 34(6): 4105-4120. [10] SEGALL M D, LINDAN P J D, PROBERT M J, PICKARD C J, HASNIP P J, CLARK S J, PAYNE M C......
of semiconducting silicide layers grown by novel growth techniques [J]. Thin Solid Films, 2004, 461: 57-62. [9] MU?OZ-PALOS J M, CRISTINA M C, ADEVA P. Synthesis of Mg2Si powder by mechanical alloying.... [11] LIU X P. Formation of magnesium silicide by mechanical alloying [J]. Advanced Performance Materials, 1997, 3: 275-283. [12] LU L, LAI M O, XUE W B, NG S Y. Influence of kinetic energy......
[J]. Thin Solid Films, 2004, 461: 86-89. [4]Tatsuoka H, Takagi N, Okaya S, et al. Microstructures of semiconducting silicide layers grown by novel growth techniques[J]. Thin Solid Films, 2004, 461... K, Oginuma H, Yuasa E, et al. Solid-state synthesis of Mg2Si from Mg-Si mixture powder[J]. Materials Transactions, 2001, 42(7): 1293-1300. [7]LIU Xiao-ping. Formation of magnesium silicide......
