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of SFA greater than 40% of the total mass, liquid-solid ratio 35 mL/g and reaction time 9 h. Under such conditions, the spherical particles are formed by the winding of xonotlite single crystal whiskers with diameter of 25-50 nm, length-diameter ratio over 20 are synthesized. The mechanisms of the growth of xonotlite whisker, formation of spherical particles and the internal structure......
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:1672-7207(2019)08-1816-08 Compaction behaviors of hard spherical granules in cylinder subject to cyclic torsional shear OUYANG Hongwu1, LEI Gang1, TANG Xin1, MENG Liping2 (1. School of Mechanical... are characteristic time of rapid and slow compaction process, respectively. After the system goes through the state of rapid compaction, it enters a creep regime involving slow rearrangement of particles......
Synthesis and characterization of aluminum particles coated with uniform silica shell CHENG Zhi-peng(程志鹏), YANG Yi(杨 毅), LI Feng-sheng(李凤生), PAN Zhen-hua(潘振华) National Special Superfine Particle...; Abstract: The silica coated aluminum composite particles were prepared......
A Cu-Cr alloy with nano and microscale Cr particles produced in a water-cooled copper moldSeyyed Mohammd Hossein Hejazi1,Fatemeh Majidi2,Gholam Hossein Akbari21. Mining Industries Research Center... electron microscopy (SEM) results show that there are the copper matrix saturated with chromium, spherical precipitates of chromium separated from liquid phase during cooling before the initiation of so......
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and improve mechanical properties of as-cast parts. The ideal microstructure for the slurry is individual fine spherical solid particles uniformly distributed within a liquid matrix. The solid fraction... SHABANI Karaj Branch, Islamic Azad University, Karaj, Iran Received 27 July 2012; accepted 22 January 2013 Abstract: The effect of SiC particles reinforcement with average size of 1, 5, 20 and 50 μm......
. The specimens were coated with gold prior to the detection. Spherical-like particles of metallic iron were commonly formed during reduction roasting (Figure 1(a)). Metallic iron particles... microphotograph of metallic iron particles in reduced pellet (1100 °C, 60 min) (a), random cutting through spherical particles (b) and division of periphery, middle and core in a pellet (c) where L......
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cracks initiated during operation induce the lubrication oil leak and serious safety hazard. Microstructural heterogeneity, including shrinkage/gaspores and secondary phase particles, is the most... at its top. The microstructure of cast Al alloys usually is composed of primary Al dendrites, eutectic silicon, Fe-rich particles and other intermetallic particles are dependent upon alloy composition......
