@article {Jin:2013:1941-4900:929,
title = "Preparing WCCoCr3C2VC Nanocomposite Powders from Precursors",
journal = "Nanoscience and Nanotechnology Letters",
parent_itemid = "infobike://asp/nnl",
publishercode ="asp",
year = "2013",
volume = "5",
number = "8",
publication date ="2013-08-01T00:00:00",
pages = "929-931",
itemtype = "ARTICLE",
issn = "1941-4900",
url = "https://www.ingentaconnect.com/content/asp/nnl/2013/00000005/00000008/art00018",
doi = "doi:10.1166/nnl.2013.1621",
keyword = "CHEMICAL SYNTHESIS, X-RAY DIFFRACTION, SCANNING ELECTRON MICROSCOPE, COMPOSITE POWDER, PRECURSOR",
author = "Jin, Yongzhong and Liu, Chunhai and Liu, Dongliang and Huang, Bin",
abstract = "WCCoCr3C2VC nanocomposite powders were prepared by a new precursor method, in which the amorphous oxides-C mixtures were first produced from salt solution containing tungsten, cobalt, vanadium, chromium and carbon elements by air drying and
subsequent calcining at 350 \textdegreeC for 1 h, and secondly reduced and carbonized at 9001100 \textdegreeC for 2 h. The nanocomposite powders were characterized by means of XRD and SEM. The results show that the amorphous oxides-C mixtures contribute to reduction of synthesis temperature. During
the whole process of powder synthesis, Co element reacts easily with W and C elements to form phases (such as Co3W3C, Co6W6C). At 1100 \textdegreeC for 2 h, the pure-phased WCCoCr3C2-VC nanocomposite powders with granular
particle of 100200 nm were obtained. The WC/Co sintered alloy using WCCoCr3C2-VC nanocomposite powders as starting materials exhibits ultrafine grain sizes, in comparison with the reference alloy using traditional milled powders.",
}