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Sustainable Saggar-Preparation Based on Recycled Silicon Carbide and Alumina Powders

Ceramic waste from broken kiln furniture, crucibles and saggars of the technical ceramic industry accumulates each year in very large amounts. It contains highly valuable materials like silicon carbide (SiC) and alumina (Al2O3). A recycling of this materials is indispensable to reduce the raw material consumption and waste production, thus decreasing the environmental impact of … Weiterlesen …

Almatis Expands its Calcined Aluminas into a Higher Purity Range

In this article, the authors discuss the need for improved purity levels of specialty alumina for emergingand developing technical applications. They discuss the impact of the overall purity level of alumina onits properties and how specific impurities or dopants impact specific properties more severe than otherimpurities or dopants. The dielectric loss is given as an … Weiterlesen …

High-End Al2O3 Ceramics: Easy to Get with New Ready-to-Press Material from Nabaltec

There are two main reasons for using alumina in ceramic applications. First, there are technical reasons, when certain material characteristics are needed and second, there are commercial considerations, aiming to get these features at an affordable cost-value ratio. The most important reason is usually on technical side, as Al2O3 is an excellent choice when engineered … Weiterlesen …

Studies on the Physico-Mechanical and Electrical Properties of Porcelain through Enrichment of Alumina by Substituting Quartz with Calcined Bauxite

In the present study, total quartz content (30 mass-%) of a standard porcelain body was progressively substituted by iron-rich calcined bauxite of Indian source. The compacted samples were fired in the temperature range of 1170–1320 °C and subjected to various tests namely linear shrinkage, bulk density, flexural strength, apparent porosity, deep abrasion resistance, thermal expansion … Weiterlesen …