Test Methods for Studying Thermal Stability and Heat Aging of Electrical Insulating Varnishes

2009 ◽  
pp. 41-41-12
Author(s):  
A. H. Haroldson
Keyword(s):  
Thermal Stability ◽  
Test Methods

Protocol of Test Methods for Evaluating High Heat Sink Fuel Thermal Stability Additives for Aviation Jet Fuel JP-8+100

2002 ◽  
Author(s):  
Robert W. Morris ◽  
Minus Jr. ◽  
Zabarnick Donald ◽  
Balster Steven ◽  
Binns Lori ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Heat Sink ◽  
High Heat ◽  
Test Methods ◽  
Jet Fuel

Properties, Weldability, and Applications of Modern Wrought Heat-Resistant Alloys for Aerospace and Power Generation Industries

2004 ◽  
Vol 128 (2) ◽  
pp. 354-361 ◽  
Author(s):  
M. D. Rowe ◽  
V. R. Ishwar ◽  
D. L. Klarstrom
Keyword(s):  
Power Generation ◽  
Thermal Stability ◽  
Gas Turbine ◽  
Test Methods ◽  
Limiting Factor ◽  
High Temperature Strength ◽  
Critical Properties ◽  
Heat Resistant ◽  
Selection For ◽  
Alloy Properties

Alloy selection and alloy design both require consideration of an array of material attributes, including in-service properties, weldability, and fabricability. Critical properties of modern heat-resistant alloys for gas turbine applications include high-temperature strength, thermal stability, oxidation resistance, and fatigue resistance. In this paper, the properties of 12 solid-solution-strengthened and six age-hardenable heat-resistant alloys are compared. Weldability is an important attribute and can be a major limiting factor in the use of certain alloys. Weldability test methods are discussed, and the resistance of alloys to solidification cracking and strain-age cracking is compared. The use of weldability testing in the development of modern heat-resistant alloys is discussed with several examples cited. Finally, alloy selection for gas turbine components is outlined, taking into account both alloy properties and fabricability.

Properties, Weldability, and Applications of Modern, Wrought, Heat-Resistant Alloys for Aerospace and Power Generation Industries

2004 ◽  
Author(s):  
M. D. Rowe ◽  
V. R. Ishwar ◽  
D. L. Klarstrom
Keyword(s):  
Power Generation ◽  
Thermal Stability ◽  
Gas Turbine ◽  
Test Methods ◽  
Limiting Factor ◽  
High Temperature Strength ◽  
Critical Properties ◽  
Heat Resistant ◽  
Selection For ◽  
Alloy Properties

Alloy selection and alloy design both require consideration of an array of material attributes, including in-service properties, weldability, and fabricability. Critical properties of modern heat-resistant alloys for gas turbine applications include high temperature strength, thermal stability, oxidation resistance, and fatigue resistance. In this paper, the properties of twelve solid-solution-strengthened and six age-hardenable heat-resistant alloys are compared. Weldability is an important attribute, and can be a major limiting factor in the use of certain alloys. Weldability test methods are discussed and the resistance of alloys to solidification cracking and strain-age cracking is compared. The use of weldability testing in the development of modern heat-resistant alloys is discussed with several examples cited. Finally, alloy selection for gas turbine components is outlined, taking into account both alloy properties and fabricability.

Comparison of Bench Test Methods to Evaluate Heavy Duty Coolant Thermal Stability

2007 ◽  
Vol 4 (4) ◽  
pp. 100634 ◽  
Author(s):  
Yu-Sen Chen ◽  
R. Doug Hudgens ◽  
Edward R. Eaton ◽  
W. Matulewicz ◽  
S. W. Dean
Keyword(s):  
Thermal Stability ◽  
Test Methods ◽  
Bench Test ◽  
Heavy Duty

Introducing an Innovative Perfluoroelastomer Cross Linking Technology: Achieving Superior Chemical Resistance and Thermal Stability

2021 ◽  
Author(s):  
Jimmy Alvarez ◽  
Christopher J. Bish ◽  
Andres Rodriguez
Keyword(s):  
Thermal Stability ◽  
Chemical Resistance ◽  
Standardized Test ◽  
Test Methods ◽  
Cross Linking ◽  
Cross Link ◽  
Cross Links ◽  
The Cross ◽  
Almost All ◽  
Performance Results

Objectives/Scope Perfluoroelastomers are a class of synthetic elastomers that provide extraordinary resistance to oils, chemicals, and heat. The outstanding thermal stability and excellent corrosion resistance of these materials is dependent on the perfluorinated polymer chain, and the absence of unsaturation. However, the cross-link which is necessary to impart elastomeric properties must also share those stability traits. Unfortunately, designing a suitably inert cross-link is technically difficult to achieve and consequently it has not been possible to provide the ultimate in perfluoroelastomer properties. This paper is a review of the cross-linking chemistry of perfluoroelastomers and highlight a novel and patented cross-link which combines broad chemical resistance and superior thermal stability. Methods, Procedures, Process Several perfluoroelastomers formulations were selected and tested using representative standardized test methods to quantify their performance. The testing included compression set resistance, swell in fluids, and compression stress relaxation. In addition to the testing, chemistry of the cross-link was explained and how it is related to the observed performance results. The novel cross-link, triazole, was identified as an improvement versus existing cross-links. Results, Observations, Conclusions The testing demonstrated that previously available perfluoroelastomer cross-link chemistries display compromises in overall performance. For example, it had not been possible to achieve high thermal stability combined with resistance to almost all fluids. Overall, the data generated showed that the newly developed triazole cross-link system broadens the performance envelope of perfluoroelastomers and helps to alleviate the compromises of the past. Novel/Additive Information The newly discovered triazole cross-link with enhanced chemical and thermal stability enables broader use of perfluoroelastomers in extreme applications.

Characterization of Bituminous, Intermediate-Level Waste Products

1988 ◽  
Vol 127 ◽  
Author(s):  
Z. Kopajtic ◽  
D. Laske ◽  
H. P. Linder ◽  
M. Mohos ◽  
M. Nellen ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Test Methods ◽  
Standard Test ◽  
Intermediate Level ◽  
Gas Generation ◽  
Γ Irradiation ◽  
Waste Products

ABSTRACTThe influence of γ-irradiation on the properties of two types of bituminous reprocessing waste has been studied. Standard test methods were adapted for use with radioactive samples. Measurements of penetration, gas generation, thermal stability and leaching of irradiated and non-irradiated samples have been compared.

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