scholarly journals Excellent melt lubrication of alkali metal polyphosphate glass for high temperature applications

RSC Advances ◽  
2015 ◽  
Vol 5 (3) ◽  
pp. 1796-1800 ◽  
Author(s):  
Anh Kiet Tieu ◽  
Shanhong Wan ◽  
Ning Kong ◽  
Qiang Zhu ◽  
Hongtao Zhu
Keyword(s):  
High Temperature ◽  
Alkali Metal ◽  
Metal Forming ◽  
Hot Metal ◽  
New Class ◽  
Fundamental Knowledge ◽  
Temperature Applications

A new class of high temperature lubricant of inorganic alkali metal polyphosphate was developed for hot metal forming, which involved a fundamental knowledge of melt lubrication.

Polymer-Derived Si-Al-C-N-O Ceramics for High Temperature Applications

2003 ◽  
Author(s):  
Lavanya Bharadwaj ◽  
Abhijeet Dhamne ◽  
Linan An ◽  
Barry Fookes ◽  
Jay Kapat ◽  
...  
Keyword(s):  
High Temperature ◽  
Crystalline Materials ◽  
Environmental Barrier Coatings ◽  
Carbon And Nitrogen ◽  
New Class ◽  
Silicon Carbon ◽  
Monolithic Components ◽  
Lower Oxidation ◽  
Pure Sio2 ◽  
Temperature Applications

Polymer-derived ceramics are a new class of materials synthesized by thermal decomposition of polymeric precursors. The resultant materials are amorphous alloys of silicon, carbon, and nitrogen, which can be converted to crystalline materials by annealing at higher temperatures. This novel chemical-to-ceramic route offers a unique opportunity to tailor the structures and compositions, therefore the properties, of the resultant materials by designing the chemistry of the precursors. In this paper we report the studies on synthesis and oxidation behavior of polymer-derived SiAlCN materials. The precursor was synthesized by mixing a polysilazane and aluminum isopropoxide. The mixture was then pyrolyzed at 1000°C in Ar/N2 to convert to SiAlCNO ceramics. The oxidation studies revealed that the SiAlCNO possesses a lower oxidation rate than SiCN. It is believed that the better oxidation resistance exhibited by SiAlCN is due to the oxide layer containing Al, which makes oxygen diffusion more difficult than in pure SiO2. The materials are promising for many high temperature applications, e.g. environmental barrier coatings, high temperature fibers, matrixes for composites, and even monolithic components.

scholarly journals High performance aluminum–cerium alloys for high-temperature applications

2017 ◽  
Vol 4 (6) ◽  
pp. 1070-1078 ◽  
Author(s):  
Zachary C. Sims ◽  
Orlando R. Rios ◽  
David Weiss ◽  
Patrice E. A. Turchi ◽  
Aurelien Perron ◽  
...  
Keyword(s):  
Heat Treatment ◽  
High Temperature ◽  
Aluminum Alloys ◽  
High Performance ◽  
High Temperature Properties ◽  
New Class ◽  
Temperature Applications

A new class of castable cerium strengthened aluminum alloys has phenomenal high temperature properties without the need for heat treatment.

Microstructural characterization of a rapidly solidified Al-Fe-V-Si alloy for elevated temperature applications

1988 ◽  
Vol 46 ◽  
pp. 550-551
Author(s):  
R. E. Franck ◽  
J. A. Hawk ◽  
G. J. Shiflet
Keyword(s):  
High Temperature ◽  
Elevated Temperature ◽  
Grain Growth ◽  
Volume Fraction ◽  
Microstructural Characterization ◽  
Second Phase ◽  
Microstructural Stability ◽  
Elevated Temperature Strength ◽  
Temperature Applications

Rapid solidification processing (RSP) is one method of producing high strength aluminum alloys for elevated temperature applications. Allied-Signal, Inc. has produced an Al-12.4 Fe-1.2 V-2.3 Si (composition in wt pct) alloy which possesses good microstructural stability up to 425°C. This alloy contains a high volume fraction (37 v/o) of fine nearly spherical, α-Al12(Fe, V)3Si dispersoids. The improved elevated temperature strength and stability of this alloy is due to the slower dispersoid coarsening rate of the silicide particles. Additionally, the high v/o of second phase particles should inhibit recrystallization and grain growth, and thus reduce any loss in strength due to long term, high temperature annealing.The focus of this research is to investigate microstructural changes induced by long term, high temperature static annealing heat-treatments. Annealing treatments for up to 1000 hours were carried out on this alloy at 500°C, 550°C and 600°C. Particle coarsening and/or recrystallization and grain growth would be accelerated in these temperature regimes.

FLYLITE ZRE-1

Alloy Digest ◽  
1952 ◽  
Vol 1 (2) ◽  
Keyword(s):  
Compressive Strength ◽  
High Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Base Alloy ◽  
Heat Treating ◽  
Jet Engine ◽  
Temperature Performance ◽  
Engine Components ◽  
Temperature Applications

Abstract Flylite ZRE-1 is a creep resistant magnesium-base alloy primarily designed for jet engine components and other high temperature applications. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive strength as well as creep. It also includes information on high temperature performance as well as casting, heat treating, machining, and joining. Filing Code: Mg-2. Producer or source: Howard Foundry Company.

THERMALLOY 63W

Alloy Digest ◽  
1978 ◽  
Vol 27 (6) ◽  
Keyword(s):  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Iron Alloy ◽  
Heat Treating ◽  
Centrifugally Cast ◽  
Nickel Chromium ◽  
Reformer Tubes ◽  
Temperature Applications

Abstract THERMALLOY 63W is a cast nickel-chromium-tungsten-iron alloy produced for service at temperature up to 1900 F. Centrifugally cast reformer tubes comprise one of its high-temperature applications. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: SS-352. Producer or source: Abex Corporation, Engineered Products Division.

Nb-modified Bi4Ti3O12 Piezoelectric for High Temperature Applications

2010 ◽  
Vol 25 (11) ◽  
pp. 1169-1174 ◽  
Author(s):  
Xiang-Ping JIANG ◽  
Qing YANG ◽  
Chao CHEN ◽  
Na TU ◽  
Zu-Deng YU ◽  
...  
Keyword(s):  
High Temperature ◽  
Temperature Applications
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