MATERIALS AND PARTS THAT CAN WITHSTAND HIGH TEMPERATURES IN AN OXIDIZING MEDIUM, AND METHOD FOR MAN

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The invention relates to a refractory material that can withstand high temperatures in an oxidising medium, which contains at least : a first component which is hafnium or a non-oxide compound of hafnium, or a mix of at least two metals and/or compounds selected from hafnium or a non-oxide compound of hafnium; a second component which is boron or a non-oxide compound of boron, or a mix of boron and a non-oxide compound of boron; a third component which is a rare earth element (RE) or a non-oxide compound of the rare earth element (RE), or a mix of the rare earth element (RE) and a non-oxide compound of the rare earth element (RE), wherein RE is selected from among scandium, yttrium, and the lanthanides. The material does not contain any silicon or silicon compounds.