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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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Journal ArticleDOI

Preparation and some properties of nanocrystalline ZrB2 powders

TL;DR: In this article, Nanocrystalline ZrB2 has been prepared by the reaction of ZrCl4 with NaBH4 in the temperature range of 500-700 °C.
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Spark plasma sintering and hot pressing of ZrB2–SiCW ultra-high temperature ceramics

TL;DR: In this paper, Zirconium diboride (ZrB 2 )-based ultra-high temperature ceramics reinforced by SiC whisker were prepared by spark plasma sintering (SPS) and conventional hot pressing (HP).
Journal ArticleDOI

Effect of SiC content, additives and process parameters on densification and structure–property relations of pressureless sintered ZrB2–SiC composites

TL;DR: In this article, the effect of SiC content, additives, and process parameters on densification and structure-property relations of pressureless sintered ZrB2-(10−40 vol%) SiC particulate composites have been studied.
Journal ArticleDOI

Solution-Based Synthesis of Submicrometer ZrB2 and ZrB2–TaB2

TL;DR: In this paper, a solution-based synthesis of zirconium diboride and a tantalum dibboride mixture was proposed, and spherical particles of 200-600 nm for pure zrB 2 and ZrB2 -TaB 2 mixtures were formed.
Journal ArticleDOI

Significance of hot pressing parameters and reinforcement size on densification behavior of ZrB2–25 vol% SiC UHTCs

TL;DR: In this paper, an experimental design technique (Taguchi method) was used to specify the significance of four factors and to obtain the optimal conditions for hot pressing ZrB 2 -SiC composites, and a relative density of ~100% was obtained at the optimal processing conditions: temperature of 1850°C, holding time of 90min, pressure of 16MPa and SiC particle size of 200mm.
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