Preparation and properties of corundum HCBS and ceramic concretes. Part 1. Mixed HCBS in the system electrocorundu--very fine quartz glass

A mixed highly concentrated suspension with improved rheological properties in the system corundum (89%)--quartz glass (11%) is prepared by combined wet grinding. A semifinished product with a porosity up to 17.5% with an ultimate strength in bending up to 5 MPa is prepared on the basis of it. The effect of heat treatment temperature on material properties is studied. The HCBS composition obtained as a matrix system combined with corundum or high-alumina fillers is promising for the preparation of ceramic concretes. Keywords: highly concentrated ceramic binder suspension (HCBS), very fine quartz glass (VFQG), matrix system, ceramic concrete, volume constancy, nanostabilization, nanoparticles.