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Title: Silicon nitride having a high tensile strength

Abstract

A silicon nitride ceramic comprising: a) inclusions no greater than 25 microns in length, b) agglomerates no greater than 20 microns in diameter, and c) a surface finish of less than about 8 microinches, said ceramic having a four-point flexural strength of at least about 900 MPa.

Inventors:
 [1];  [2];  [3];  [3];  [4];  [5];  [6];  [7]
  1. Northboro, MA
  2. Medfield, MA
  3. Oxford, MA
  4. Millbury, MA
  5. Grafton, MA
  6. Sterling, MA
  7. Oakham, MA
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
870675
Patent Number(s):
5571760
Assignee:
Saint-Gobain/Norton Industrial Ceramics Corporation (Worcester, MA)
Patent Classifications (CPCs):
C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
silicon; nitride; tensile; strength; ceramic; comprising; inclusions; 25; microns; length; agglomerates; 20; diameter; surface; finish; microinches; four-point; flexural; 900; mpa; surface finish; ceramic comprising; silicon nitride; tensile strength; nitride ceramic; flexural strength; /501/

Citation Formats

Pujari, Vimal K, Tracey, Dennis M, Foley, Michael R, Paille, Norman I, Pelletier, Paul J, Sales, Lenny C, Willkens, Craig A, and Yeckley, Russell L. Silicon nitride having a high tensile strength. United States: N. p., 1996. Web.
Pujari, Vimal K, Tracey, Dennis M, Foley, Michael R, Paille, Norman I, Pelletier, Paul J, Sales, Lenny C, Willkens, Craig A, & Yeckley, Russell L. Silicon nitride having a high tensile strength. United States.
Pujari, Vimal K, Tracey, Dennis M, Foley, Michael R, Paille, Norman I, Pelletier, Paul J, Sales, Lenny C, Willkens, Craig A, and Yeckley, Russell L. Mon . "Silicon nitride having a high tensile strength". United States. https://www.osti.gov/servlets/purl/870675.
@article{osti_870675,
title = {Silicon nitride having a high tensile strength},
author = {Pujari, Vimal K and Tracey, Dennis M and Foley, Michael R and Paille, Norman I and Pelletier, Paul J and Sales, Lenny C and Willkens, Craig A and Yeckley, Russell L},
abstractNote = {A silicon nitride ceramic comprising: a) inclusions no greater than 25 microns in length, b) agglomerates no greater than 20 microns in diameter, and c) a surface finish of less than about 8 microinches, said ceramic having a four-point flexural strength of at least about 900 MPa.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {1}
}

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