Linked Life Data

7988758

Source:http://linkedlifedata.com/resource/pubmed/id/7988758

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1995-1-11
pubmed:abstractText
Ceramics are known to undergo chemical static fatigue in the presence of moisture at ambient temperatures. However, until recently, it has been assumed that ceramic materials do not undergo mechanical fatigue. This study, using an indentation technique, demonstrated the existence of mechanically induced cyclic fatigue in a feldspathic dental porcelain under ambient conditions. Growth rates (dc/dN) were consistent with the Paris Law, which is a power law function of the applied stress intensity range (delta K) governing mechanical fatigue phenomena. A Paris exponent m of the order of 4, and a constant C of the order of 2 x 10(-6) were calculated. The susceptibilities of a range of dental ceramics to mechanical fatigue, and the possible interaction between mechanical and chemical static fatigue must be investigated so that materials and techniques giving ceramic prostheses the longest possible lifetimes can be identified.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
D
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0109-5641
pubmed:author
pubmed:issnType
Print
pubmed:volume
9
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
260-4
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
Mechanical fatigue of a feldspathic dental procelain.
pubmed:affiliation
University of Southern California, School of Dentistry, Los Angeles.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.