Szczegóły publikacji
Opis bibliograficzny
Investigations of the subcritical crack growth phenomenon and the estimation of lifetime of alumina and alumina-zirconia composites with different phase arrangements / Agnieszka WOJTECZKO, Radosław LACH, Kamil WOJTECZKO, Zbigniew PĘDZICH // Ceramics International ; ISSN 0272-8842. — Tytuł poprz.: Ceramurgia International ; ISSN: 0390-5519. — 2016 — vol. 42 iss. 8, s. 9438–9442. — Bibliogr. s. 9442, Abstr. — Publikacja dostępna online od: 2016-03-02
Autorzy (4)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 97261 |
|---|---|
| Data dodania do BaDAP | 2016-04-21 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.ceramint.2016.02.178 |
| Rok publikacji | 2016 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Ceramics International |
Abstract
The Constant Stress Rate Test was used to determine subcritical crack propagation of sintered composites in the α-alumina-tetragonal zirconia system. Strength measurements were conducted at different stress rates. Material strength depends on the flaw size. Increasing stress rates led to strength increase as a result of shortening of the time of crack growth. The alumina composite with 5 vol% of zirconia inclusions was prepared as a model of particulate composites with isolated grains of the minor phase. The composite with 15 vol% of zirconia was fabricated as a two-phase material with the minor phase grains content near the percolation point. The third type of a composite containing 35 vol% of zirconia additives was prepared as an example of the composite with typical duplex microstructure. Additionally, α alumina sinters were prepared as a reference material. The performed experiments allowed us to calculate parameters of slow crack propagation and to construct strength-probability-time diagrams for lifetime prediction of ceramic elements. © 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved
