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Traditional flotation technology using GY series fatty acid reagents (GYR, GYB) (a) and new tungsten ore flotation process based on metal-organic complex (b)[23] 图9 油酸钙胶体颗粒对萤石和方解石的选择性捕收能... Layered self-assembly model based on terpyridine coordination system as molecular container [63] 1) 浮选体系中捕收剂和金属离子在水溶液体系中的真实组分状态存在一定的争议,其组装行为尚不清楚,难以实现定向调控; 2) 捕收剂和金属离子在水溶液中形成有效配合物组分的组装条件尚不清楚,难以实现定向组装......
of forged workpieces According to Figs. 5(a) and (b), finer grains can be observed along the shear bands and the grain boundaries of the forged samples. In brittle materials with HCP crystal lattice... related to their uniaxial tensile and compressive behaviors, although based on the previous studies such connection does not necessarily exist for metal matrix composites [11]. Similar to the tensile......
goodly limits the contact between the active metal and body fluid. The passive film results in an excellent corrosion resistance, and prominent biocompatibility [3,4]. However, titanium-based alloys... [29] using a ball-on-disk tribometer with in-situ electrochemical measurements. 2 Experimental The wear-corrosion tests were performed according to ASTM G119-09, which is based on the following......
interface and develop a new technology for producing foundry silumins based on amorphous microsilica obtained from silicon production waste. Effective methods for producing hypoeutectic, eutectic... is to research a complex of physical- chemical processes of Al(l)-SiO2 interface and develop a technology for producing low- temperature silumin (in accordance with GOST 1583-93) based on the amorphous......
molecule is deprotonated (in the presence of formed OH- anions), and a complex with Cu+ ion is formed (CuBTA). Benzotriazole- based film is formed over the entire surface of AA2024 alloy... on the strength of the alloy. The GP zones are solute atoms collected into clusters, and they have the same crystal structure as the solid solution. The GP zones are of several nanometers in size [6]. During......
layer, intersected with each other and passed through the deformation twins, which formed intense shear bands for apparent crystal rotation in the local micro-region, as shown in Fig. 12(a). Furthermore... with an elongation to failure of 53.1%, and the synergistic deformation degree between the copper stranded wire and brass cladding layer was high during drawing, which had good drawing workability. Based......
loading ratios in excess of 4 [27]. The impurities determined by ICP-OES method are: Mn (38.0 mg/kg), Co (19.7 mg/kg), Ni (39.8 mg/kg), Zn (195.2 mg/kg), As (182.5 mg/kg), Ag (7.7 mg/kg), Cd (1.1 mg/kg... to be correlated with the crystal lattice orientation and the presence of defects and/or impurities [52] induced by the chemical adsorption of Pr02 onto the CuFeS2 surface. 3.6 SEM and EDX analysis......
Corporation, USA). The crystal micro- structure of the coatings was analyzed by X-ray diffractometer (XRD, Rigaku D/MAX2500PC, Japan). Fig. 1 Schematic diagram of preparation process of hybrid coatings.... Additionally, the peak at about 2927 cm-1 belongs to C-H asymmetric and symmetric stretching vibrations, respectively [38]. The peak of Si-O-Si from BTESPT appears at 1079 cm-1 [39]. Based......
to cobalt shortages via adsorption-based harvesting from seawater[J]. Renewable and Sustainable Energy Reviews, 2019, 105: 301-309. [2] DHIMAN S, GUPTA B. Partition studies on cobalt and recycling of valuable... A. Formation of pure hematite by hydrolysis of iron(Ⅲ) salt solutions under hydrothermal conditions[J]. Crystal Research and Technology, 1986, 21(9): 1177-1183. [32] 杨 凡, 邓志敢, 魏 昶, 李兴彬, 李存兄, 邱伟佳, 朱如龙......
a research hotspot in the field of aluminum metal composites [8-10]. LIU et al [11] prepared 6061Al aluminum matrix composites reinforced with Ni-coated graphene nanoplates (GNPs) by ball milling and hot... to the matrix alloy. VENKATESAN and XAVIOR [20] also fabricated metal matrix composites based on AA7050 alloy reinforced with graphene nanoparticles by stir casting and squeeze casting techniques......