Evolution of Phase, Microstructure and ZrC Lattice Parameter in Solid-solution-treated W-ZrC Composite

Abstract Zirconium carbide (ZrC) reinforced tungsten (W) composite was hot-pressed at 2200 °C for 1 h in vacuum, which was subsequently heat treated in the temperature range of 2200 to 2500 °C for 1.5 or 2 h. The relative ratios of ZrC phase were 21.0, 23.3 and 25.9 mol.% for the mixture of starting...

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Autores principales:	Peng Jia, Lei Chen, Jiancun Rao, Yujin Wang, Qingchang Meng, Yu Zhou
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2ed5e22dde784a7da71897709c367442
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spelling	oai:doaj.org-article:2ed5e22dde784a7da71897709c3674422021-12-02T15:04:54ZEvolution of Phase, Microstructure and ZrC Lattice Parameter in Solid-solution-treated W-ZrC Composite10.1038/s41598-017-06301-02045-2322https://doaj.org/article/2ed5e22dde784a7da71897709c3674422017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-06301-0https://doaj.org/toc/2045-2322Abstract Zirconium carbide (ZrC) reinforced tungsten (W) composite was hot-pressed at 2200 °C for 1 h in vacuum, which was subsequently heat treated in the temperature range of 2200 to 2500 °C for 1.5 or 2 h. The relative ratios of ZrC phase were 21.0, 23.3 and 25.9 mol.% for the mixture of starting powders, composites sintered for 1 h and solid-solution treated at 2500 °C for 1.5 h, respectively. The solid solubility of W in ZrC increased with the increment in heat-treating temperature and time to a maximum value of 18.9 mol.% at 2500 °C for 1.5 h. The lattice parameter of cubic ZrC phase diminished from 0.4682 nm in the starting powder to 0.4642 nm in the solid-solution composite treated at 2500 °C for 1.5 h. This work demonstrated that the relationship between the solid solubility of W in ZrC and the lattice parameter of ZrC is linear, with a slope of −1.93 × 10−4 nm/at.%. Overall, more W atoms diffused into ZrC lattice after heat treatment, meanwhile, the previous precipitated nano-sized W dissolved in the supersaturated (Zr,W)C solid-solution, as detected by SEM and TEM.Peng JiaLei ChenJiancun RaoYujin WangQingchang MengYu ZhouNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Peng Jia Lei Chen Jiancun Rao Yujin Wang Qingchang Meng Yu Zhou Evolution of Phase, Microstructure and ZrC Lattice Parameter in Solid-solution-treated W-ZrC Composite
description	Abstract Zirconium carbide (ZrC) reinforced tungsten (W) composite was hot-pressed at 2200 °C for 1 h in vacuum, which was subsequently heat treated in the temperature range of 2200 to 2500 °C for 1.5 or 2 h. The relative ratios of ZrC phase were 21.0, 23.3 and 25.9 mol.% for the mixture of starting powders, composites sintered for 1 h and solid-solution treated at 2500 °C for 1.5 h, respectively. The solid solubility of W in ZrC increased with the increment in heat-treating temperature and time to a maximum value of 18.9 mol.% at 2500 °C for 1.5 h. The lattice parameter of cubic ZrC phase diminished from 0.4682 nm in the starting powder to 0.4642 nm in the solid-solution composite treated at 2500 °C for 1.5 h. This work demonstrated that the relationship between the solid solubility of W in ZrC and the lattice parameter of ZrC is linear, with a slope of −1.93 × 10−4 nm/at.%. Overall, more W atoms diffused into ZrC lattice after heat treatment, meanwhile, the previous precipitated nano-sized W dissolved in the supersaturated (Zr,W)C solid-solution, as detected by SEM and TEM.
format	article
author	Peng Jia Lei Chen Jiancun Rao Yujin Wang Qingchang Meng Yu Zhou
author_facet	Peng Jia Lei Chen Jiancun Rao Yujin Wang Qingchang Meng Yu Zhou
author_sort	Peng Jia
title	Evolution of Phase, Microstructure and ZrC Lattice Parameter in Solid-solution-treated W-ZrC Composite
title_short	Evolution of Phase, Microstructure and ZrC Lattice Parameter in Solid-solution-treated W-ZrC Composite
title_full	Evolution of Phase, Microstructure and ZrC Lattice Parameter in Solid-solution-treated W-ZrC Composite
title_fullStr	Evolution of Phase, Microstructure and ZrC Lattice Parameter in Solid-solution-treated W-ZrC Composite
title_full_unstemmed	Evolution of Phase, Microstructure and ZrC Lattice Parameter in Solid-solution-treated W-ZrC Composite
title_sort	evolution of phase, microstructure and zrc lattice parameter in solid-solution-treated w-zrc composite
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/2ed5e22dde784a7da71897709c367442
work_keys_str_mv	AT pengjia evolutionofphasemicrostructureandzrclatticeparameterinsolidsolutiontreatedwzrccomposite AT leichen evolutionofphasemicrostructureandzrclatticeparameterinsolidsolutiontreatedwzrccomposite AT jiancunrao evolutionofphasemicrostructureandzrclatticeparameterinsolidsolutiontreatedwzrccomposite AT yujinwang evolutionofphasemicrostructureandzrclatticeparameterinsolidsolutiontreatedwzrccomposite AT qingchangmeng evolutionofphasemicrostructureandzrclatticeparameterinsolidsolutiontreatedwzrccomposite AT yuzhou evolutionofphasemicrostructureandzrclatticeparameterinsolidsolutiontreatedwzrccomposite
_version_	1718389006334427136

Evolution of Phase, Microstructure and ZrC Lattice Parameter in Solid-solution-treated W-ZrC Composite

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