Waterborne aluminium-based metallic micro-powder coating is the coating that Al-Zn powder, the aqueous solution of the inorganic metal salt, a small amount of chromium anhydride , organic or inorganic reducing agent is mixed into the material of thick liquid, put into surfactant and other additive, mix into a waterborne metallic micro-powder coating , coat it on the metal surface, form the coating of metal base through fritting.
The diffusion of valve coating alloys after high temperature fritting has been investigated by JSM-35C SEM, X-ray WDS and EDAX 9100/60. By the distribution of diffusion depth and diffusion concentration, the diffusion coefficients for Fe, Ni and Cr on the interface are found respectively and shown to be quite in consistence. Better hardness of valve coating alloys is thought to be due to a combination fo B and Cr.
In this work, the effects of composition, sintering methods and heat-treatments on the mechanical properties of WHAs were systematically studied by means of optical microscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD), tensile test, and impact test.
Researched this gradient’s sintering methods, forming mechanism, preparing process, affecting factors,coating quality and cutting performance by means of changing the method of adding N, alloy’s composition, process parameters and coating the alloy.
The effects on mechanical properties of iron based diamond segment under different sintering methods and different sintering technology parameters have been studied in the paper. Wear performance to granite of iron based diamond segment under different sintering methods and different sintering technology parameters and wear mechanism have also been studied.
Steam produced during the decomposition process accelerated the sintering of MgO, and MgO with surface area as high as 412 m2 · g-1 was obtained through calcining its precursor in flowing dry nitrogen at 520°C for 4 h.
The fabrication procedure involved a double-sintering process in a rich-Mg environment.
Samples with the equally high density and matching superconducting properties were obtained as well by a triple sintering process of the MgB2 powder directly from Alfa Aesar.
The specific surface areas are different before sintering, and have a slight difference after sintering.
Besides, the impurity phase, tetracalcium phosphate, appeared during ultrasonic atomizing procedure, and can be completely removed after sintering at 650°C for 1 h.
In contrast to the conventional selective laser sintering, the SSLS method makes it possible to sinter polymer microparticles and melt the near-surface layer rather than the microparticle as a whole.
The nanoparticles are highly reactive and sinter at low temperatures (T >amp;lt; 0.35Tm).
Effect of the catalyzing combustion of coke breeze on the energy saving in sinter process
The mechanism of additive ZC-1 for catalyzing combustion of coke breeze in sintering of iron ore fines was studied by using X-ray Diffraction, TGA and GC(Gas Chromatographer), by which energy saving was achieved on sinter pot test.
Burnt lime and serpentine were incorporated into the sinter mix to improve high iron and low silica sintering.
The MgB2 superconductor, synthesized using solid-state and liquid-phase sintering methods, have been characterized for various properties.
Recently the fabrication of ceramics starting from the appropriate melts of the educts has attracted increasing attention due to the easy shaping of work pieces and other advantages compared to powder sintering methods.
Ceramics have generally been fabricated from powders by shape forming >amp;amp; sintering methods except for glasses and glass ceramics.
The melting method has not only higher productivity but also higher shape forming ability than powder processes via forming >amp;amp; sintering methods.
Piezoelectric ceramics of 18PMN-41PZ-41PT were sintered by hot-pressing and normal sintering methods.
Porous metal coating sintered at high temperature with 100~360 mesh bronze powder has been studied experimentally. This coating exhibits as a nearly perfect difEuser for the 10.6m wavelength of CO2 laser; its melting point is up to 1000, the highest of the known sphere coatings; it has stable physical and chemical properties; good mechanical and heat transfer characteristics; and can be used in a low pressure system.