2010
DOI: 10.1016/j.jeurceramsoc.2010.01.011
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Near net-shape/net-dimension ZrC/W-based composites with complex geometries via rapid prototyping and Displacive Compensation of Porosity

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Cited by 70 publications
(24 citation statements)
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“…1,2 The density of stoichiometric ZrC (6.64 g cm −3 ) is much lower than those of other refractory carbides such as HfC (12.7 g cm −3 ), TaC (14.8 g cm −3 ) and WC (15.6 g cm −3 ), 3 so ZrC could be a good potential material for structure component used in next-generation rocket engines and hypersonic spacecraft. 4,5 In addition, in the frame work of the Generation-IV nuclear energy system, ZrC is one of the possible inert matrix materials for gas-cooled fast reactor (GFR) fuel and potential fuel coating material for high-temperature gas-cooled reactor (HTGR) fuel due to its resistance to corrosion by fission products and neutronic properties. 6,7 However, ZrC is also characterized by its poor sinterability, mainly due to its strong covalent bond characteristics and low self-diffusion coefficient, analogous to that of other carbides such as HfC, SiC, and B 4 C. In this context, pressure-assisted techniques and high sintering temperatures are generally applied to get dense ZrC bodies.…”
Section: Introductionmentioning
confidence: 99%
“…1,2 The density of stoichiometric ZrC (6.64 g cm −3 ) is much lower than those of other refractory carbides such as HfC (12.7 g cm −3 ), TaC (14.8 g cm −3 ) and WC (15.6 g cm −3 ), 3 so ZrC could be a good potential material for structure component used in next-generation rocket engines and hypersonic spacecraft. 4,5 In addition, in the frame work of the Generation-IV nuclear energy system, ZrC is one of the possible inert matrix materials for gas-cooled fast reactor (GFR) fuel and potential fuel coating material for high-temperature gas-cooled reactor (HTGR) fuel due to its resistance to corrosion by fission products and neutronic properties. 6,7 However, ZrC is also characterized by its poor sinterability, mainly due to its strong covalent bond characteristics and low self-diffusion coefficient, analogous to that of other carbides such as HfC, SiC, and B 4 C. In this context, pressure-assisted techniques and high sintering temperatures are generally applied to get dense ZrC bodies.…”
Section: Introductionmentioning
confidence: 99%
“…The reactive melt infiltration (RMI) process, based on reactions between a porous solid and a melting liquid, is usually evaluated as a rapid manufacturing process with advantages of low cost, near net shape and yielding a dense composite [17][18][19][20][21]. This approach has been proved to be a promising approach to fabricate C f /ZrC composites.…”
Section: A N U S C R I P Tmentioning
confidence: 99%
“…It was found that the residual reactant was a grey core surrounded by a relatively bright coating. After the interface reaction, the unreacted WC particle was surrounded by the W layer, subsequently carbon atoms in the core diffused out in the further reaction [16,19]. When the temperature increased, the diffusion became easier, and there should be fewer remnants.…”
Section: Microstructurementioning
confidence: 99%
“…After the reaction finished, most copper was expelled out of the body Table 1 The mechanical properties of W-ZrC composites prepared by the DCP method. [15,19], a litter alloy (part (4)) was left because it was surrounded by W and ZrC.…”
Section: Microstructurementioning
confidence: 99%
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