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during target erosion, which results in a lower increase in free energy on the particle surface and more efficient energy conversion. Hence, to clarify the influencing regularities of abrasive hardness... structure and the development characteristics of the free jet section, a physical model for numerical analysis was built. The parameters were set as follows: nozzle inlet straight section length of 6......
diagram of the preparation process to fabricate 3DOM-C and 3DOM/m-C is shown in Figure 1. Firstly, monodisperse polymethyl methacrylate (PMMA) microspheres were prepared by a typical soap-free emulsion... in 100-300 °C which is ascribed to evaporation of low molecular-weight molecules such as free resorcinol, formaldehyde and water [36]. The mass loss occurring in 350-450 °C is attributed to breaking of C......
in the drums. Compared with a baffle-free or conventional baffle arrangement, this arrangement can effectively enhance the axial mixing. The motion and mixing of particles in rotating drums have an important... and number of binary particles were also consistent with those described in the simulation conditions below, but the materials were ceramics. The density of ceramic balls is 2800 kg/m3, Poisson ratio is 0.23......
available for the passivity breakdown. The electrochemical reactions in the solution containing the borided specimen may lead to the dissolution of the TiB2 compound and the formation of H3BO3... diffusion of boron into titanium [J]. Ceramics International, 2012, 38: 6795-6805. [9] EBRAHIMI A, ESFAHANI H, FATTAH-ALHOSSEINI A, IMANTALAB O. Electrochemical properties of commercially pure Ti......
, the improvement of strength, ductility, and other mechanical properties could lead to an ever-growing use of magnesium alloys as load bearing components [1,4]. GOU et al [5] implemented cyclic closed-die forging... temperature in the free air. 2.1 Open-die hot-forging process Cylindrical shape specimens with height and diameter of 50 mm were extracted from homogenized ingots using lath machine. Afterwards......
physicochemical parameters (standard enthalpy of formation and Gibbs free energy), as well as using the programs "PANDAT", "CHS Chemistry 5" and "SELECTOR". Since the initial data on thermodynamic function... K. The values of Gibbs free energy in the investigated temperature range were calculated with a step of 100 K. The calculations were carried out upon considering polymorphic transformations of silica......
hydrocarbon oxidation in cooking oil fumes[J]. Ceramics International, 2018, 44(13): 15472-15477. [15] ZHOU Guilin, HE Xiaoling, LIU Sheng, et al. Phenyl VOCs catalytic combustion on supported CoMn......
components to the inorganic ceramic network. Compared to the inorganic sol-gel films, the hybrid sol-gel films are flexible, thick, and defect-free and can be obtained at lower curing temperatures... to form defect-free and compact sol-gel film on the magnesium alloy. In the other words, it seems that the HND addition causes the promotion of the chemical interaction between the silane monomers......
lead to failure) that exist in traditional composite materials [1]. As a result, such materials have the potential to minimize thermal and residual stress concentrations in various engineering... to produce FGM, namely powder metallurgy (PM) technique [6], centrifugal casting process [7], physical/chemical vapor deposition processes (PVD/CVD) [8], solid free-form fabrication (SFF) process [9......
, such as failure of high strength ceramics, impact fracture of tempered glass, concrete cracking and failure of jointed rock mass [1, 2]. The analytical solutions to crack propagation problems...: continuum-based method and discontinuum-based method [3, 4]. The commonly used continuum-based methods include the boundary element method (BEM) [5, 6], the mesh-free method (MMs) [7-10], the finite......
