Personality in Science
Nanotechnologies
R&D Projects
News Of Science
Engineering
International Research & Education
Science & Technology Articles
MRC.ORG.UA

MRC ENGINEERING AND MANUFACTURING
ABOUT US PRODUCTS DESIGN PRODUCTION GALLERY VIDEO ARTICLES PARTNERS VACANCIES SITEMAP

Follow us:



MRC SCIENCE AND TECHNOLOGY
R&D PROJECTS PERSONALITY IN SCIENCE International research and education Methods of testing and research Standardization and Certification NANOTECHNOLOGY NEW ENERGY SCIENCE AND TECHNOLOGY ARTICLES


JOURNAL "DOM"
NEWS OF SCIENCE NEWS OF ENGINEERING


LINKS
Materials Research Centre Ltd. DREXEL UNIVERSITY DNI Carbon materials LINKS Yandex Search

Fracture behaviour of Y-TZP ceramics: New outcomes

G. A. Gogotsi, V.I. Galenko, S.P. Mudrik, B.I. Ozersky, V.V. Khvorostyany, T.A. Khristevich

Pisarenko Institute for Problems of Strength, 2, Timiryazevskaya Str., 01014 Kiev, Ukraine



CERAMICS

INTERNATIONAL



Abstract

Modern approaches to fracture resistance estimation of Y-TZP ceramics are critically analyzed. It is shown that fracture toughness test methods do not produce data that are reliable enough. The present investigationmakes use of the edge fracture (EF) test method based on flaking the rectangular specimen edge. Chip scars formed on specimen edges after the Rockwell indentation were examined. It is established that not the chip scar shape but its surface area is decisive for the fracture resistance of these ceramics. The influence of indenter sharpness on fracture resistance estimates was elucidated: Rockwell indenter, 400-mm tip radius conical indenter, and Vickers indenter were used. The EF method ensures simultaneous determining a fracture resistance characteristic and plotting an FR-line some equivalent to a conventional R-curve. Therefore, such economically feasible tests, easily realizable in a conventional mechanical laboratory, provide quite exhaustive information on the fracture behaviour of ceramics. The proposed method of evaluating the fracture resistance of Y-TZP ceramics may be useful in materials science practice.

pdf View in pdf    htmlView in html

 
След. >

MRC ltd. / Kiev MATERIALS RESEARCH CENTRE    
www.dom.ua    

 Contact information
MRC Ltd. Materials research centre
Kiev, Krzhizhanovskogo, 3
Tel.: +38 (044) 233-24-43
Tel.: +38 (044) 237-71-87
Fax: +38 (044) 502-41-49
E-mail:
We work: Mon - Sat 10:00 - 18:00
Лицензия Creative Commons

Photos of the projects implemented by MRC TM "ДОМ", as well as articles and videos are published under the Creative Commons Attribution — with preservation of terms
(Attribution-ShareAlike) 3.0 Unported. You can freely copy, distribute, modify the materials with link to the author.

Яндекс цитирования  
name=Contacts face= 0.16