《Laser powder bed fusion of cemented carbides by developing a new type of Co coated WC composite powder》 was written by Zhang, Lei; Hu, Chaoquan; Yang, Yafeng; Misra, R. D. K.; Kondoh, Katsuyoshi; Lu, Yanan. Application In Synthesis of Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrateThis research focused ontungsten carbide cobalt composite laser powder bed fusion. The article conveys some information:
The study addresses the issue of the absence of high-quality WC-Co composite powder for laser powder bed fusion and assessing the printability of the new powder in terms of densification, microstructure and mech. properties. The fluidized bed chem. vapor deposition (FBCVD) combined with electroless plating process was adopted to make core-shell structured WC-Co composite powder. The excellent uniformity of Co and good powder flowability were achieved by tuning the size and distribution of Co catalyst during FBCVD and regulating their relationship to the subsequent electroless plating behavior. The newly developed composite powder exhibited excellent printability. The densification mechanism was largely dependent on the laser energy d. The liquid formed by the melting of Co was responsible for the densification at low laser energy d., while the Co-W-C ternary liquid resulted from the dissolution of WC into Co melt dominated the densification at high laser energy d. Microstructurally, the morphol. and size of WC grains were insignificantly changed because of its non-participation with liquid formation at low laser energy d. The rectangular/triangular WC grain morphol. similar to the traditional sintered was formed at high laser energy d. because of the precipitation of WC from the Co-W-C ternary liquid Affected by the different liquid formation processes, increasing laser energy d. increased the relative d., promoted the W2C phase formation and decreased WC grain size, which remarkably improved the hardness and tribol. properties of the printed cemented carbide. In the experiment, the researchers used Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5Application In Synthesis of Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate)
Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5) is a ferroelectric crystal with a high piezoelectric effect and electromechanical coupling coefficient. Application In Synthesis of Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate It is utilized to break up emulsion in organic synthesis as well as a common precipitant in protein crystallography.
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