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Vacuum Furnace - Integrated "Sub zero" Treatment B.Zieger1,Hubert Schulte1 (1.SCHMETZ GmbH, Menden, Germany) 摘要:The vacuum heat treatment with overpressure gas quenching is more and more accepted... chamber and "sub zero" systems lead towards an oxidation free and low distortion vacuum heat treatment for a broad range of parts and materials. Short and energy saving processes guarantee a high......
CVI[11], rapid direction diffused CVI[12], thermal gradient-pulse flow CVI[13] and pulse chemical infiltration[14]. Pressure-gradient CVI technology using the propene as the precursor gas[15... Densification mechanism of chemical vapor infiltration technology for carbon/carbon composites CHEN Jian-xun(陈建勋), XIONG Xiang(熊 翔), HUANG Qi-zhong(黄启忠), YI Mao-zhong(易茂中), HUANG Bai-yun(黄伯云......
pressure due to the effect of capillary pressure. Wettability and infiltration rates increased with increasing temperature, and interfacial reaction products(ZrC0.7 and TiC) were detected in the Zr...Spontaneous infiltration and wetting behaviors of a Zr-based alloy melt on a porous SiC substrateBo Zhang1,Wen Li2,Hong Li3,Hai-feng Zhang31. School of Materials Science and Engineering, Shenyang......
. This is due to two reasons. 1) since the vapor pressure of Ti and Al is high under vacuum conditions, some of these elements are wasted and it results in diminishing the amount of the strengthening... Trans. Nonferrous Met. Soc. China 22(2012) 2124-2130 Effect of vacuum degree in VIM furnace on mechanical properties of Ni-Fe-Cr based alloy Masoud MOSHTAGHI, Seied Mahdi ABBASI Materials......
of the most economical and widely used methods, such as pressureless infiltration [4], vacuum-assisted pressure infiltration [5], squeeze casting [6] and extrusion directly following infiltration [7...Trans. Nonferrous Met. Soc. China 23(2013) 3173-3179 Threshold pressure and infiltration behavior of liquid metal into fibrous preform Jun-tao GUAN1, Le-hua QI1,2, Jian LIU1,3, Ji-ming ZHOU1,2, Xin......
210096, China) Abstract: Porous Al with high porosity (70%-90%) and high degree of pore-opening(25%-50%) was obtained by controlling the quantity of molten Al. The effects of infiltration pressure... pore structures 2 渗流参数的确定 2.1 驱动压力对渗流过程的影响 图3所示为渗流压力对多孔铝形貌的影响. L=140mm; Pd=45.5%; d=4mm; 目标孔隙率P=80%; tP=570℃; tAl=705℃. 图3 渗流压力对高孔隙率多孔铝形貌的影响 Fig.3 Effect of infiltration pressure on pore......
-capillary pressure relation in sandy medium under water level fluctuation LI Yan(李雁)1, 2, ZHOU Jin-feng(周劲风)3, XU Jun(徐军)4, KAMON M5 1. School of Marine Sciences, Sun Yat-sen University, Guangzhou...-capillary pressure (S-p) relation in water-light nonaqueous phase liquid (LNAPL) two-phase sandy medium under water level fluctuation. Three-electrode electrical conductivity probe (ECP) was used......
J. Cent. South Univ. (2020) 27: 2032-2042 DOI: https://doi.org/10.1007/s11771-020-4428-5 Improved method for determining active earth pressure considering arching effect and actual slip surface HE... 59000, France Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2020 Abstract: To determine the distribution of active earth pressure on retaining walls, a series......
="ChDivSummary" name="ChDivSummary">Diamond reinforced copper (Cu/diamond) composites were prepared by a pressure infiltration technique.The composites show a super high conductivity of 713 W m-1 K-1...Pressure infiltrated Cu/diamond composites for LED applicationsFAN Yeming a,GUO Hong a,XU Jun a,CHU Ke a,ZHU Xuexin a,JIA Chengchang b,YIN Fazhang a,and ZHANG Ximin a a Nonferrous Metal Processing......
Processing of B4C Particulate-reinforced Magnesium-matrix Composites by Metal-assisted Melt Infiltration TechniqueYantao Yao,Liqing ChenState Key Laboratory of Rolling and Automation,Northeastern... fabricating composites by metal melt infiltration,a simple and viable method has been proposed in this paper where a small amount of metal powder with higher melting point is added to the ceramic preform......
