Szczegóły publikacji
Opis bibliograficzny
Pressureless sintering of binderless tungsten carbide / Kamil KORNAUS, Marian RĄCZKA, Agnieszka GUBERNAT, Dariusz ZIENTARA // Journal of the European Ceramic Society ; ISSN 0955-2219. — Tytuł poprz.: International Journal of High Technology Ceramics. — 2017 — vol. 37 iss. 15, s. 4567–4576. — Bibliogr. s. 4576, Abstr. — Publikacja dostępna online od: 2017-06-21
Autorzy (4)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 108712 |
|---|---|
| Data dodania do BaDAP | 2017-09-29 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.jeurceramsoc.2017.06.008 |
| Rok publikacji | 2017 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Journal of the European Ceramic Society |
Abstract
The aim of this study was to produce dense, single phase polycrystals. The research was carried out on the submicron tungsten carbide powder without additives, with either a carbon or tungsten additive and on the powder with both additives. The primary task of carbon was to reduce surface oxide impurities which passivate WC grains; tungsten in turn bounds free carbon in the WC. The authors manufactured fine-grained, dense (96–98% T.D.) and single-phase WC polycrystals, using the technique of pressureless sintering at the temperature not exceeding 2000 °C. A positive effect of carbon addition on tungsten carbide sinterability was observed, whereby a dense, fine-grained polycrystals can be obtained at 1900 °C. It was also observed that a significant excess of temperature of sintering process resulted in a strong abnormal grain growth of WC grains.
