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Open AccessJournal Article

Materials for ultrahigh temperature structural applications

K Upadhya, +2 more
- 01 Jan 1997 - 
- Vol. 76, Iss: 12, pp 51-56
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TLDR
In this paper, advanced ultrahigh temperature materials are critical to the development of next-generation rocket engines and hypersonic spacecrafts, and the authors propose a method to obtain them from ultra high temperature materials.
Abstract
Advanced ultrahigh temperature materials are critical to the development of next-generation rocket engines and hypersonic spacecrafts.

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Preparation and Ablation Properties of W/TaC Cermet via in-situ Reaction Sintering Process

TL;DR: In this article, an attractive way to prepare W/TaC based cermet at a relatively low temperature was proposed and confirmed experimentally, and the thermodynamics calculations indicated that the reaction between WC and Ta2O5 was feasible at as low a temperature as 1 400 °C.
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Effects of Sol Network Modifiers on Preparation, Morphology and Phase Composition of Zirconium Diboride Nano-Powders by Novel Sol-Gel Technology

TL;DR: In this paper, Zirconium diboride nano-powders were synthesized by novel sol-gel technology using different sol network modifiers such as propylene oxide (PO) and citric acid (CA) to control the formation of zirconia precursor sol, respectively.
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Thermal Shock and Ablation Behavior of Tungsten Nozzle Produced by Plasma Spray Forming and Hot Isostatic Pressing

TL;DR: In this paper, a hot-firing test on a solid rocket motor (SRM) was conducted to investigate the resistance of thermal shock and ablation behavior of a tungsten nozzle.
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Oxidation and strength retention of HfB2−SiC composite with La2O3 additives

TL;DR: In this article, the oxidation and its effect on room temperature flexural strength were examined in hot-pressed 3 vol.-% La2O3-doped HfB2-20 vol.% SiC composite exposed to air at 1400°C and 1500°C, respectively.
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Fabrication of ZrC-SiC Powders by Means of Liquid Precursor Conversion Method Using ZrC Precursor and Polycarbosilane

TL;DR: In this paper, the effects of staring reagents and pyrolysis temperature on the fabrication of ZrC-SiC powders were studied, and it was shown that Zrc-Sic powders with different Zr/SiC ratio could be formed when the staring reagent were different.
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