Evaluating High-Temperature Intumescent Insulation Materials Under Fire and Blast Conditions

2009 ◽  
pp. 498-498-12 ◽  
Author(s):  
AJ Parker
Keyword(s):  
High Temperature ◽  
Insulation Materials

ZIRCONIA FIBERS AS A COMPONENT OF HIGH TEMPERATURE THERMAL INSULATION (review)

2021 ◽  
pp. 79-86
Author(s):  
V.G. Babashov ◽  
◽  
N.M. Varrik ◽  
Keyword(s):  
High Temperature ◽  
Thermal Insulation ◽  
Zirconium Oxide ◽  
Thermal Protection ◽  
Sol Gel ◽  
Precursor Solution ◽  
Technical Literature ◽  
Thermal Protection Systems ◽  
Insulation Materials ◽  
Protection Systems

Based on the analysis of recent publications of scientific and technical literature, data on the production of zirconium oxide fibers used for the manufacture of high-temperature thermal insulation materials are presented. Information is provided on various methods of obtaining zirconium oxide fibers (methods of impregnation of the template and molding of the mixture, sol-gel method of spinning a fiber-forming precursor solution), as well as on the technique of fiber molding (manual pulling, dry and wet spinning, blowing and electrospinning). The use of such fibers for the production of thermal insulation materials (felts, cords and blocks) instead of currently existing materials made of aluminum oxide-based fibers can significantly increase the operating temperatures of the thermal protection systems.

scholarly journals Space Charge Accumulation Phenomena in PI under Various Practicable Environment

2021 ◽  
Author(s):  
Hiroaki Miyake ◽  
Yasuhiro Tanaka
Keyword(s):  
High Temperature ◽  
Space Charge ◽  
High Humidity ◽  
Power Equipment ◽  
Charge Accumulation ◽  
Insulation Materials ◽  
Breakdown Phenomenon ◽  
Operation Environment ◽  
Dielectric Insulation

Polyimide is widely used insulation materials, such as power equipment, motor windings, multi layer insulated, and so on. As the operation environment is high temperature, high humidity, radiation, the dielectric insulation characteristic is decreased compared with pristine one. Especially, the space charge characteristics are obtained big different. Furthermore, the breakdown phenomenon is frequently produced. In this chapter, we discuss the dielectric phenomena through the viewpoints of charge accumulation under the following environment. High temperature, High humidity, DC application, PWM application, Radio-active rays (electron, proton).

scholarly journals Evaluation of Radiative Heat Transfer in High-Temperature Porous Insulation Materials by Using Diffusion Approximation

Netsu Bussei ◽  
2015 ◽  
Vol 28 (4) ◽  
pp. 179-184 ◽  
Author(s):  
Tatsuya Kobari ◽  
Junnosuke Okajima ◽  
Atsuki Komiya ◽  
Shigenao Maruyama
Keyword(s):  
Heat Transfer ◽  
High Temperature ◽  
Radiative Heat Transfer ◽  
Diffusion Approximation ◽  
Radiative Heat ◽  
Insulation Materials

High Temperature Micro Structural Evolution of ZrO2 Fibers Thermal Insulation Materials

2014 ◽  
Vol 602-603 ◽  
pp. 319-322 ◽  
Author(s):  
Guang Hai Wang ◽  
Hao Ran Sun ◽  
Chun Peng Wang ◽  
Jian Zhou ◽  
Yan Li Huo ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Mechanical Property ◽  
High Temperature ◽  
Thermal Insulation ◽  
Thermal Protection ◽  
Structural Evolution ◽  
High Strength ◽  
Insulation Materials ◽  
High Temperature Heat Treatment ◽  
Xrd Patterns

Yttria-stabilized zirconia fibers thermal insulation materials may be the main developmental direction of high temperature thermal protection materials, due to their high temperature resistance (above 2000 °C), high strength and toughness, low thermal conductivity ( about 2 W/m·K), oxidation resistance and other excellent properties. However, mechanical property of zirconia fibers thermal insulation materials is decrease after high temperature heat treatment. In this paper, the evolution of microscopic structure of zirconia fibers is studied by using the method of oxyacethlene ablation. The gain growth and high temperature creep are observed after 600 s heat treatment at 1800 °C. Crystal phase of zirconia fibers is not changed and still cubic. Moreover, crystallinity is more higher form XRD patterns. Controlling grain growth can improve high temperature mechanical property of zirconia fibers thermal insulation materials.

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