Supercritical Fluid Applications in Advanced Materials Processing

1988 ◽  
Vol 121 ◽  
Author(s):  
Richard A. Wagner ◽  
Val J. Krukonis ◽  
Michael P. Coffey
Keyword(s):  
Mechanical Properties ◽  
Silicon Carbide ◽  
Physical Properties ◽  
Oxidation Resistance ◽  
Supercritical Fluid ◽  
Supercritical Fluids ◽  
Char Yield ◽  
Advanced Materials ◽  
Materials Processing ◽  
Carbon Composites

ABSTRACTThe feasibility of using supercritical fluids to impregnate carbon/carbon composites with a ceramic precursor was successfully demonstrated. Improvements in mechanical properties and oxidation resistance were correlated with the distribution of silicon within the microstructure of the composites. In addition, supercritical fluids were also used to fractionate silicon carbide precursors and thereby control the physical properties and char yield.

Microstructure of Silicon Carbide/Carbon Composites and Relationships with Mechanical Properties

1995 ◽  
Vol 78 (11) ◽  
pp. 3050-3056 ◽  
Author(s):  
Xavier Bourrat ◽  
Kristofer S. Turner ◽  
Anthony G. Evans
Keyword(s):  
Mechanical Properties ◽  
Silicon Carbide ◽  
Carbon Composites

ADVANCER NITRIDE BONDED SILICON CARBIDE

Alloy Digest ◽  
1992 ◽  
Vol 41 (4) ◽  
Keyword(s):  
Silicon Carbide ◽  
Shear Strength ◽  
High Temperature ◽  
Physical Properties ◽  
Oxidation Resistance ◽  
High Temperature Strength ◽  
Kiln Furniture ◽  
Low Mass ◽  
Long Life

Abstract ADVANCER NITRIDE BONDED SILICON CARBIDE has exceptional high-temperature strength. Its oxidation resistance assures long life. It is a low-mass ceramic that is ideally suited to kiln furniture. This datasheet provides information on composition, physical properties, elasticity, and shear strength. Filing Code: Cer-11. Producer or source: Norton Company.

ARMCO 430

Alloy Digest ◽  
2000 ◽  
Vol 49 (9) ◽  
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Oxidation Resistance ◽  
Stainless Steels ◽  
Heat Treating ◽  
Ferritic Stainless Steels ◽  
Good Corrosion Resistance

Abstract Armco Type 430 is one of the most widely used of the “nonhardenable” ferritic stainless steels. It combines good corrosion resistance and heat and oxidation resistance up to 816 deg C (1500 deg F) with good mechanical properties. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-803. Producer or source: AK Steel Inc.

DH 21

Alloy Digest ◽  
2010 ◽  
Vol 59 (12) ◽  
Keyword(s):  
Mechanical Properties ◽  
Physical Properties ◽  
Oxidation Resistance ◽  
High Temperatures ◽  
Heat Treating ◽  
Die Steel ◽  
Die Cast ◽  
Check Resistance ◽  
Hot Work Die

Abstract DH 21 is a hot work die steel with excellent heat check resistance, excellent mechanical properties at high temperatures, excellent temper resistance, excellent oxidation resistance, and excellent nitriding properties. The alloy was developed to extend the life of aluminum die cast molds. This datasheet provides information on composition, physical properties, and hardness. It also includes information on heat treating. Filing Code: TS-695. Producer or source: International Mold Steel Inc.

Processing-Microstructure-Tensile Property of Vapor Grown Carbon Fiber Reinforced Carbon Composite

1995 ◽  
Vol 383 ◽  
Author(s):  
Jyh-Ming Ting
Keyword(s):  
Mechanical Properties ◽  
Thermal Conductivity ◽  
Carbon Fiber ◽  
Physical Properties ◽  
Tensile Properties ◽  
Gas Phase ◽  
Thermal Management ◽  
Carbon Fibers ◽  
Carbon Composite ◽  
Carbon Composites

ABSTRACTIn contrast to the form in which other carbon fibers are produced, vapor grown carbon fiber (VGCF) is produced from gas phase precursors in the form of individual fibers of discrete lengths. VGCF can be harvested as a mat of semi-aligned, semicontinuous fibers, with occasional fiber branching and curling. The use of VGCF mats as reinforcement result in composites which exhibit unique microstructure and physical properties that are not observed in other types of carbon composites. This paper describes the processing of VGCF mats reinforced carbon composites, and its unique microstructure and properties. Utilization of fiber tensile properties, as well as thermal conductivity, in the composites is discussed. Comparison of experimental results from various VGCF composites to theory indicates that mechanical properties are more strongly affected by characteristics of VGCF mat than are thermal conductivity. The implications of this relationship favors applications for thermal management where structural demands are less stringent.

Study on Morph-Genetic Materials Derived from Natural Structure

2005 ◽  
Vol 502 ◽  
pp. 373-378
Author(s):  
Di Zhang ◽  
Tong Xiang Fan ◽  
Bing He Sun ◽  
Tian Chi Wang ◽  
Xian Qing Xie ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Molten Metal ◽  
Advanced Materials ◽  
Materials Processing ◽  
Interpenetrating Networks ◽  
Natural Structure ◽  
Novel Technology ◽  
Use Values ◽  
Natural Plants

Synthesis of morph-genetic materials derived from biological structures by rapid, high temperature conversion represents a novel technology of advanced materials processing. The resulting morph-genetic materials exhibit unique macro- and microscopic cellular morphologies. In addition, based on the porous character of some natural plants, there is a further possibility of compounding the resulting morph-genetic materials with molten metal or polymer to produce morph-genetic composites with interpenetrating networks. Thus, the morph-genetic materials will be endowed with new use values, such as good mechanical properties, and friction behaviors, etc.

ACERINOX ACX 490

Alloy Digest ◽  
2020 ◽  
Vol 69 (9) ◽  
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Oxidation Resistance ◽  
Ferritic Stainless Steel ◽  
Heat Treating ◽  
Low Carbon

Abstract Acerinox ACX 490 is an extra low-carbon, 17% chromium, ferritic stainless steel, that combines good corrosion, heat, and oxidation resistance with good formability and good mechanical properties. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-1327. Producer or source: Acerinox, S.A.

The Anti-Oxidation Coatings of Carbon/Carbon Composites

2014 ◽  
Vol 1058 ◽  
pp. 253-256
Author(s):  
Han Li ◽  
Hong Zhao Xu ◽  
Xue Ye Sui ◽  
Chang Ling Zhou ◽  
Chong Hai Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Oxidation Resistance ◽  
Loss Rate ◽  
Coated Sample ◽  
Carbon Composites ◽  
Weight Loss Rate ◽  
Cvd Method ◽  
High Temperature Mechanical Properties ◽  
Temperature Environment

C/C composites have excellent properties, but it will be rapidly oxidized when temperature is above 500 °C, which limits its applications in high temperature environment. In order to improve Anti-oxidation, using CVD method, a SiC coating is prepared on the surface of C/C composites. We have studied the microstructure of the SiC coating, oxidation resistance and high temperature mechanical properties. The results show that SiC coating has excellent oxidation resistance. When coated sample is oxidized at 1500 °C after 50 hours, its oxidation weight loss rate is only 1.45%, and coated samples can still maintain high mechanical properties at 1200 °C.

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