Usage of vermiculite as a high-temperature insulating refractory material
Abstract
Vermiculite, a hydrated Mg/Al/Fe silicate mica-like clay mineral with a laminate structure. Vermiculite is a very versatile material. It has a remarkable ability to expand to many times its original volume (exfoliation) when heated (>300°C). The majority of applications call for vermiculite in its exfoliated form, and it has a wide range of applications that take advantage of its significant properties such as low bulk density, low thermal conductivity, odor-free, chemical inertness, easy handle and fire resistance. These properties make vermiculite a promising material for use as high-temperature insulating refractory material in the metallurgical industry. The service (working) temperature of vermiculite-based refractories is about 1100-1150 °C. In order to increase the working temperature and to produce a wide range of vermiculite-based refractory products, refractory binders and fillers (e.g. alumina cement, fire clays etc.) are added to the lightweight vermiculite. In this paper, the application of vermiculite as a high temperature insulating refractory material was mentioned.
Keywords
Kaynakça
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Ayrıntılar
Birincil Dil
İngilizce
Konular
Mühendislik
Bölüm
Derleme
Yayımlanma Tarihi
31 Aralık 2018
Gönderilme Tarihi
6 Kasım 2018
Kabul Tarihi
30 Aralık 2018
Yayımlandığı Sayı
Yıl 2018 Cilt: 1 Sayı: 2