Welcome
The yet2.com global technology marketplace lists intellectual property, technology, and patents for technology transfer, technology licensing, patent licensing and patent sale. As premier technology brokers, yet2.com offers this essential IP marketplace for technology owners, technology seekers, and technology brokers interested in technology acquisition, patent licensing, intellectual property licensing (IP licensing), and intellectual property transfer.   more...

 Interested?
This is an abstract of a technology that is available for sale or license. yet2.com can introduce you confidentially to the owner of this technology.
To view the complete TechPak, please register with us.

 Still looking?
Enter a keyword or phrase below, and search now to find other technologies of interest.
 
 TechPak Categories
Monolithic silicon nitride having high fracture toughness

A monolithic silicon nitride ceramic is densified at temperatures lower than 2000.degree. C. and heat treated at temperatures greater than 2000.degree. C. in the presence of at least 6.5 w % of multi-component sintering aids. This monolithic silicon nitride has a highly acicular microstructure characterized by .beta.-Si.sub.3 N.sub.4 grains having an average grain width ranging from about 1 to 1.5 .mu.m and average apparent aspect ratio greater than 1.8, Chevron Notch fracture toughness greater than 9 MPa.multidot.m.sup.1/2, R-curve behavior, high Weibull modulus, excellent damage tolerance, high thermal conductivity, and other desirable properties.

Patent Information

NumberUS  5449649
CountryUS
StatusIssued
Date09/12/1995


Interested? This is an abstract of a technology that is available for sale or license. yet2.com can introduce you confidentially to the owner of this technology.
To view the complete TechPak, please register with us.
yet2.com TechPakTM produced by yet2.com. For an introduction to the owner of this technology please visit www.yet2.com or call:
Boston, MA, USA
+ 1 (781) 972-0600
fax + 1 (781) 972-0601		 Hertfordshire, United Kingdom
+ 44 (0) 1923 285282
fax + 44 (0) 1923 285280		 Tokyo, Japan
+ 81-3-5157-5440
fax + 81-3-5157-5441
Copyright © 1999-2008 by yet2.com, Inc. All Rights Reserved.