Fractured toughness of Si/sub 3/N/sub 4/ measured with short bar chevron-notched specimens
Conference
·
OSTI ID:5985542
The short bar chevron-notched specimen is used to measure the plane strain fracture toughness of hot pressed Si/sub 3/N/sub 4/. Specimen proportions and chevron-notch angle are varied, thereby varying the amount of crack extension to maximum load (upon which K sub IC is based). The measured toughness (4.68 + or - 0.19 MNm to the 3/2 power) is independent of these variations, inferring that the material has a flat crack growth resistance curve.
- Research Organization:
- National Aeronautics and Space Administration, Cleveland, OH (USA). Lewis Research Center
- OSTI ID:
- 5985542
- Report Number(s):
- N-86-13495
- Country of Publication:
- United States
- Language:
- English
Similar Records
Adaptation of the chevron-notch beam fracture toughness method to specimens harvested from diesel particulate filters
Fracture resistance measurement of advanced ceramics at elevated-temperatures using Chevron-notched specimens and other novel techniques
Apparent fracture toughness estimation of additively manufactured alumina from as-printed chevron-notched test specimens
Journal Article
·
Tue Jan 17 19:00:00 EST 2017
· International Journal of Applied Ceramic Technology
·
OSTI ID:1343531
Fracture resistance measurement of advanced ceramics at elevated-temperatures using Chevron-notched specimens and other novel techniques
Conference
·
Sat Dec 30 23:00:00 EST 1995
·
OSTI ID:175211
Apparent fracture toughness estimation of additively manufactured alumina from as-printed chevron-notched test specimens
Journal Article
·
Thu Dec 19 19:00:00 EST 2024
· Journal of the American Ceramic Society
·
OSTI ID:2538334
Related Subjects
36 MATERIALS SCIENCE
360203* -- Ceramics
Cermets
& Refractories-- Mechanical Properties
CRACK PROPAGATION
DATA
EXPERIMENTAL DATA
FABRICATION
FRACTURE PROPERTIES
HOT PRESSING
INFORMATION
MATERIALS WORKING
MECHANICAL PROPERTIES
NITRIDES
NITROGEN COMPOUNDS
NUMERICAL DATA
PNICTIDES
PRESSING
SILICON COMPOUNDS
SILICON NITRIDES
360203* -- Ceramics
Cermets
& Refractories-- Mechanical Properties
CRACK PROPAGATION
DATA
EXPERIMENTAL DATA
FABRICATION
FRACTURE PROPERTIES
HOT PRESSING
INFORMATION
MATERIALS WORKING
MECHANICAL PROPERTIES
NITRIDES
NITROGEN COMPOUNDS
NUMERICAL DATA
PNICTIDES
PRESSING
SILICON COMPOUNDS
SILICON NITRIDES