Thermal stability of beta[sup ʺ]-alumina solid electrolyte under AMTEC operating conditions

2000 ◽  
Author(s):  
Roger M. Williams
Author(s):  
I. N. Kravchenko ◽  
Yu. A. Kuznetsov ◽  
A. L. Galinovskii ◽  
S. A. Velichko ◽  
P. A. Ionov ◽  
...  

The results of studies of the thermal stability of materials operating in a plasma jet at high temperatures and a sharp change in thermal loads are presented. It has been proven that the use of plasma generators with the introduction of various powder materials makes it possible to simulate the operating conditions of parts in high-temperature gas flows with heated particles. The effect of the introduced powder materials on the thermal stability of samples prepared by plasma spraying from molybdenum, as well as tungsten and tungsten-based compositions is investigated. An installation is proposed for assessing the thermal stability of composite materials and protective hardening coatings operating under high-temperature gas flows, which makes it possible to determine their erosion resistance.


1999 ◽  
Author(s):  
Roger M. Williams ◽  
Margaret A. Ryan ◽  
Margie L. Homer ◽  
Liana Lara ◽  
Ken Manatt ◽  
...  

1980 ◽  
Vol 53 (2) ◽  
pp. 335-345 ◽  
Author(s):  
P. C. Killgoar ◽  
R. A. Pett ◽  
R. J. Tabar ◽  
L. R. Foote

Abstract An elastomeric spring starter using rubber in shear has been designed. Design criteria have been established and used to develop potential compounds for use in the device. Natural rubber proved to be the elastomer of choice primarily because of its excellent fatigue resistance. To reconcile bonding requirements and requirements for low hysteresis, the individual rings were fabricated from two elastomer compounds. Limitations on the thermal stability of the adhesive system were identified which put constraints on the operating conditions for the starter. A prototype starter has been assembled and installed in a vehicle. This prototype starter provides quiet, rapid starting of the test car. Questions of cost effectiveness, reliability, durability or manufacturing feasibility of this device have not been addressed. The starter was built for experimental purposes only and development of such a concept for mass production has not been explored.


2013 ◽  
Vol 160 (9) ◽  
pp. A1539-A1543 ◽  
Author(s):  
Hosang Park ◽  
Taeho Yoon ◽  
Junyoung Mun ◽  
Ji Heon Ryu ◽  
Jae Jeong Kim ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document