HfC- and TaC-based composite materials containing 15vol% MoSi2 as sintering aid were selected for their excellent combination of ceramic and metallic properties to produce simple shaped prototypes for ablation tests in a mixture of oxygen/butane/propane at temperatures between 1300°C and 1900°C. The ablation resistance of the HfC- and TaC-based models was compared to that of graphite models. SEM analysis of the sample surfaces and sections was conducted to analyze the material degradation. The composites have a superior ablation resistance compared to graphite, showing only slight surface oxidation and weight variation for temperatures above 1700°C.

Ablation tests on HfC- and TaC-based ceramics for aeropropulsive applications

CECERE, ANSELMO;SAVINO, RAFFAELE
2015

Abstract

HfC- and TaC-based composite materials containing 15vol% MoSi2 as sintering aid were selected for their excellent combination of ceramic and metallic properties to produce simple shaped prototypes for ablation tests in a mixture of oxygen/butane/propane at temperatures between 1300°C and 1900°C. The ablation resistance of the HfC- and TaC-based models was compared to that of graphite models. SEM analysis of the sample surfaces and sections was conducted to analyze the material degradation. The composites have a superior ablation resistance compared to graphite, showing only slight surface oxidation and weight variation for temperatures above 1700°C.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/596607
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