Silicon Nitride Tensile Strength Database from Ceramic Technology Program PRocessing for Reliability Project

2009 ◽  
pp. 3-3-16 ◽  
Author(s):  
MR Foley ◽  
VK Pujari ◽  
LC Sales ◽  
DM Tracey
Keyword(s):  
Tensile Strength ◽  
Silicon Nitride ◽  
Ceramic Technology ◽  
Technology Program ◽  
Strength Database

Processing Methods for High Reliability Silicon Nitride Heat Engine Components

1995 ◽  
Vol 117 (1) ◽  
pp. 156-160 ◽  
Author(s):  
V. K. Pujari ◽  
D. M. Tracey
Keyword(s):  
Tensile Strength ◽  
Silicon Nitride ◽  
Process Control ◽  
High Reliability ◽  
Heat Engine ◽  
High Strength ◽  
Processing Unit ◽  
Unit Operations ◽  
Engine Components ◽  
Strength Database

The paper discusses highlights of a silicon nitride processing methodology that has been developed in the course of a major four-year DoE funded program in processing for reliability. The program focused on the attainment of high strength and reliability through the identification and subsequent control of strength-degrading flaws introduced during processing unit operations. Process control and NDE methods applied to achieve an optimized process with the potential to produce high-reliability advanced heat engine components are discussed. Concluding remarks are directed to the extensive tensile strength database that has been generated through testing of over 300 tensile rods produced by the optimized process.

scholarly journals Processing Methods for High Reliability Silicon Nitride Heat Engine Components

1993 ◽  
Author(s):  
Vimal K. Pujari ◽  
Dennis M. Tracey
Keyword(s):  
Tensile Strength ◽  
Silicon Nitride ◽  
Process Control ◽  
High Reliability ◽  
Heat Engine ◽  
High Strength ◽  
Processing Unit ◽  
Unit Operations ◽  
Engine Components ◽  
Strength Database

The paper discusses highlights of a silicon nitride processing methodology that has been developed in the course of a major four year DoE funded program in processing for reliability. The program focused on the attainment of high strength and reliability through the identification and subsequent control of strength degrading flaws introduced during processing unit operations. Process control and NDE methods applied to achieve an optimized process with the potential to produce high reliability advanced heat engine components are discussed. Concluding remarks are directed to the extensive tensile strength database that has been generated through testing of over 300 tensile rods produced by the optimized process.

Anab initiocalculation of the ideal tensile strength of β-silicon nitride

2001 ◽  
Vol 64 (17) ◽  
Author(s):  
Shigenobu Ogata ◽  
Naoto Hirosaki ◽  
Cenk Kocer ◽  
Hiroshi Kitagawa
Keyword(s):  
Tensile Strength ◽  
Silicon Nitride ◽  
The Ideal

scholarly journals Tensile Strength of Hot Isostatic Pressed Silicon Nitride and Effect of Specimen Dimension.

1991 ◽  
Vol 57 (539) ◽  
pp. 1637-1642 ◽  
Author(s):  
Shoji HARADA ◽  
Nao-Aki NODA ◽  
Osamu UEHARA ◽  
Mitsuyoshi NAGANO
Keyword(s):  
Tensile Strength ◽  
Silicon Nitride ◽  
Specimen Dimension

scholarly journals Tensile Strength Change of Silicon Nitride/Stainless Steel Joints during Neutron Irradiation

2005 ◽  
Vol 23 (1) ◽  
pp. 88-94
Author(s):  
Masako NAKAHASHI ◽  
Toshiaki ITO ◽  
Yasushi GOTO ◽  
Yuji YASUDA ◽  
Xia ZHU ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Stainless Steel ◽  
Silicon Nitride ◽  
Neutron Irradiation ◽  
Strength Change ◽  
Steel Joints

Dependence of high-temperature tensile strength on displacement rate for hot-pressed silicon nitride

1990 ◽  
Vol 25 (6) ◽  
pp. 2990-2996 ◽  
Author(s):  
Tatsuki Ohji ◽  
Yukihiko Yamauchi ◽  
Wataru Kanematsu ◽  
Shoji Ito
Keyword(s):  
Tensile Strength ◽  
High Temperature ◽  
Silicon Nitride ◽  
Displacement Rate ◽  
High Temperature Tensile

scholarly journals Progress in Fabrication of Silicon Nitride Structural Components for Turbomachinery Applications

1996 ◽  
Author(s):  
John P. Pollinger
Keyword(s):  
Silicon Nitride ◽  
High Performance ◽  
Rocket Engine ◽  
Ceramic Materials ◽  
Department Of Energy ◽  
Structural Components ◽  
Technology Program ◽  
Ceramic Components ◽  
Nozzle Blade

The development and refinement of high performance silicon nitride structural ceramic materials over the last five years is leading to evaluation and implementation of components in aircraft, space, industrial, and automotive turbomachinery applications. Current material properties, status of component fabrication technologies, and status of applications being evaluated and commercialized at AlliedSignal Ceramic Components is discussed. Currently achievable properties of in-situ reinforced monolithic silicon nitride materials are presented. The development and status of component forming processes is also discussed, including their potential as manufacturing processes. The processes discussed include slipcasting, green machining, gelcasting, and injection molding. Finally, status of silicon nitride component fabrication and evaluation in a number of applications is discussed, including nozzle, blade, and wheel components for the U.S. Department of Energy (DOE) automotive turbine technology programs, the DOE Advanced Turbine Systems industrial turbine technology program, and a NASA-funded program to develop advanced rocket engine turbopumps.

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