Influence of boric anhydride upon the physicomechanical properties of corundum ceramics

Evaluating the behavior of some types of ceramics during testing in a stream of high-temperature gas

“…In the present article we present the results of determining the resistance to frequent hearings of materials having a dense structure and which are based on high-alumina ceramics containing 3%* fluxes (B203, SiO 2, CaO) [2]; quartz ceramic [3]; fusion-cast corundum Kor-93 prepared from the melt [4]; mullite chamotte (63% Al=Os) and its mixture with 9 and 13%electrocorundum; high-temperature chamotte (83% A1203) [5, 6]; mixtures of corundum and zircon containing 74.2% of A1203, 17.7% ZrSiO~, 5.8% MgO, 2.3% silicone resin K-9 [7][ aluminum titanate % [8]; mixtures of corundum with aluminum titanate (50:50) with an addition of 9% Si02 on 100% [9]. *Here and subsequently, mass parts are stated.…”