High-Temperature Performance of Next-Generation Silicon Carbide Fibers for CMCs

2021 ◽  
Vol 10 (2) ◽  
pp. 20200131
Author(s):  
Shay Harrison ◽  
John Schneiter ◽  
Joseph Pegna ◽  
Erik Vaaler ◽  
Ramkiran Goduguchinta ◽  
...  
Alloy Digest ◽  
1994 ◽  
Vol 43 (10) ◽  

Abstract Duralcan F3S.xxS is a heat treatable aluminum alloy-matrix gravity composite. The base alloy is similar to Aluminum 359 (Alloy Digest Al-188, July 1969); the discontinuously reinforced composite is silicon carbide. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive strength as well as fracture toughness and fatigue. It also includes information on high temperature performance. Filing Code: AL-329. Producer or source: Alcan Aluminum Corporation.


2012 ◽  
Vol 2012 (1) ◽  
pp. 001105-001115 ◽  
Author(s):  
Z. Cole ◽  
B. Passmore ◽  
B. Whitaker ◽  
A. Barkley ◽  
T. McNutt ◽  
...  

The packaging design and development of an on-board bi-directional charger for the battery system of the next generation Toyota Prius plug-in hybrid electric vehicle (PHEV) will be presented in this paper. The charger implements a multichip power module (MCPM) packaging strategy. The Silicon Carbide (SiC) MCPM charger is capable of operating to temperatures in excess of 200°C and at switching frequencies in excess of 500 kHz, significantly reducing the overall size and weight of the system in comparison with Toyota's present silicon-based Prius charger. The present actively cooled Si charger is capable of delivering a peak power of 1kW at less than 90 percent efficiency, is limited to less than 50 kHz switching, and measures greater than 6.3 liters with a mass of 6.6 kg, resulting in a power density of 150 W/kg. The passively cooled SiC MCPM charger presented herein was designed to deliver a peak power of 5 kW at greater than 96% efficiency, while measuring less than 0.9 liters with a mass of 1 kg, resulting in a power density greater than 5 kW/kg. Thus, the novel SiC MCPM charger represents an increase in power density of more than 30×, a very significant power density achievement in size and weight for sensitive mobile applications such as PHEVs. This paper will discuss the overall mechanical design of the SiC MCPM charger, the finite-element modeling and analysis of thermal and stress considerations, characterization and parasitic analysis of the MCPM, and the development of high temperature solutions for SiC devices.


1997 ◽  
Vol 6 (10) ◽  
pp. 1392-1395 ◽  
Author(s):  
T.S. Sudarshan ◽  
G. Gradinaru ◽  
G. Korony ◽  
S.A. Gradinaru ◽  
W. Mitchel

1991 ◽  
Vol 250 ◽  
Author(s):  
Jason R. Guth

AbstractIn many composite systems it has become apparent that coatings on the reinforcements are necessary to achieve high toughness materials. In order to examine materials which may be used as coatings on ceramic monofilaments and remain stable in high temperature, oxidizing environments, the deposition of a number of refractory metals has been attempted. The results of coating experiments using silicon carbide fibers as substrates as well as general observations concerning the prospects of continuously coating long lengths of fibers will be discussed. The materials studied include carbon, cobalt, zirconium, molybdenum, tantalum, tungsten, and iridium. Carbon has been deposited from methane and propylene onto both SiC and sapphire fibers. Deposition of the metals has been achieved by direct chlorination of the metals followed by hydrogen reduction at the fiber. Iridium(III)2,4-pentanedionate has been used to deposit iridium metal. All metals were deposited at low pressure in a hot wall reactor with fibers continuously spooled through the reactor.


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