Mechanical properties and thermal shock behavior of hot-pressed ZrB2–SiC–AlN composites

Rapid heating thermal shock study of ultra high temperature ceramics using an in situ testing method

“…However, their intrinsic characteristics, such as low fracture toughness (premature failure due to brittle fracture) [5][6][7], poor thermal shock resistance [8][9][10], are still obstacles for them to be used widely, especially for applications with high heat transfer and/or rapid environmental temperature changes. Therefore, the thermal shock behaviors of UHTCs have been intensively investigated in past decades [11][12][13][14], and how to improve the thermal shock resistance of UHTCs is one of the main challenges for engineering application.…”

“…Usually, the thermal shock of UHTCs has two conditions: rapid cooling thermal shock and rapid heating thermal shock. At present, almost all experimental reports of UHTCs are about their rapid  cooling thermal shock behaviors [11][12][13][14]. The rapid cooling thermal shock behaviors of UHTCs are always evaluated by water quenching method, in which the ceramic specimens are heated to a particular temperature and then quenched into a water bath.…”

“…The rapid cooling thermal shock behaviors are commonly tested using water quenching method, and the residual strengths are subsequently measured after quenching [11][12][13][14]. Nevertheless, testing methods for the rapid heating thermal shock behaviors mainly include laser heating [20], electron beam heating [21], oxyacetylene heating [18], radiant heating [22], plasma arc heating [23], arc-heating wind tunnel heating [17,24], etc.…”

Thermal shock behavior of 30wt%BAS/Si3N4 self-reinforced composite

“…Their excellent properties make the BAS/Si 3 N 4 ceramics matrix composites particularly interesting for both room and high temperature applications. Thermal shock resistance and other high temperature performances of the structural ceramics have attracted intensive studies for the relevant high temperature applications [8,9]. Although the thermal shock behavior of Si 3 N 4 -based ceramics has been extensively investigated [10][11][12][13][14][15], there is almost no experimental data in the literatures concerning the effect of thermal shock on mechanical properties of BAS/Si 3 N 4 composites.…”

Effect of graphite flake on microstructure as well as mechanical properties and thermal shock resistance of ZrB2–SiC matrix ultrahigh temperature ceramics

“…It is primarily because ZrB 2 has an excellent combination of mechanical, physical, chemical and oxidation resistance properties [1,2,8,9]. It is known that the addition of appropriate amounts of SiC particles not only enhances the mechanical properties [3,4,10], but also improves the oxidation resistance of ZrB 2 by promoting the formation of silicate-based glasses that inhibit oxidation at temperatures between 800 and 1700 • C [4,11].…”