Preparation and study of some properties of NbC - WC and TaC - WC alloys

Панов, В. С.; Meerson, G.A.

doi:10.1007/bf00774531

Cited by 6 publications

(3 citation statements)

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“…The lattice parameter of the Fm‐3m TaC–WC solid‐solution as a function of the WC content. Data of Hachisuka, 26 Rudy and Benesovsky, 27 and Panov and Meerson 28 are shown as references. Panov and Meerson 28 reported the decomposition of the solid‐solution after a 48‐h dwell at 1450°C.…”

Section: Resultsmentioning

confidence: 99%

“…Data of Hachisuka, 26 Rudy and Benesovsky, 27 and Panov and Meerson 28 are shown as references. Panov and Meerson 28 reported the decomposition of the solid‐solution after a 48‐h dwell at 1450°C. Sara RV 29 reported the lattice parameter for the cubic solid‐solution after a dwell at 1700°C for stoichiometric and carbon‐deficient tungsten carbides.…”

Section: Resultsmentioning

confidence: 99%

“…Figure 7 shows the relation between the XRD of the raw powder and 50 mol.% TaC when the final product is a solidsolution without traces of the W or W 2 C. As expected, other solid-solutions will have a shift toward the higher diffraction angle with an increase in the contribution of W in (Ta,W)C. Figure 8 illustrates such a shift for the (422) peak, while Figure 9 summarizes the data for the lattice parameters for the cubic (Ta,W)C solid-solution reported in this study and in Refs. 9,[26][27][28][29] One can see the variation in the lattice parameters with an increase in the W addition…”

Section: Lattice Parameter Of (Taw)c Ceramicsmentioning

confidence: 99%

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Preparation of high‐strength (Ta,W)C solid‐solutions by spark plasma sintering

Demirskyi

Yoshimi

Suzuki

et al. 2023

Int J Applied Ceramic Tech

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(Ta,W)C bulks were prepared by spark plasma sintering. Densification kinetics and solid‐solution formation kinetics were performed on the powder mixtures using TaC and W powders. The as‐received tungsten powder had a spherical shape and rather coarse size. By using the crushed and as‐received powder, it can be suggested that sintering at 2000°C limits the reaction volume to 3–6 μm and hence allows forming a complete solid‐solution using finer powders. The lattice parameter, hardness, toughness, and strength were investigated as a function of the TaC content. The flexural strength of the (Ta,W)C ceramic bulks was investigated up to 2000°C and it was found that the maximum strength was for the 60 mol.% TaC composition. Strength as a function of the temperature tended to increase up to 1200°C followed by a gradual decrease to 2000°C. When the TaC was reinformed by coarse W spheres, the flexural strength monotonically decreased from 570 MPa at room temperature to 220 MPa at 2000°C.

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