What is refractory explain?

1 : resisting control or authority : stubborn, unmanageable. 2a : resistant to treatment or cure a refractory lesion. b : unresponsive to stimulus. c : immune, insusceptible after recovery they were refractory to infection. 3 : difficult to fuse, corrode, or draw out especially : capable of enduring high temperature.

What is refractory and its types?

A refractory material or refractory is a material that is resistant to decomposition by heat, pressure, or chemical attack, and retains strength and form at high temperatures. Refractories are polycrystalline, polyphase, inorganic, non-metallic, porous, and heterogeneous.

What is refractory in chemistry?

Refractories are materials that are resistant to high temperature, used predominantly as furnace linings for elevated temperature materials processing and other applications in which thermomechanical properties are critical.

What is a refractory mineral?

Refractory minerals can be defined as minerals or synthetic inorganic crystal phases that have high melting points. They should also be resistant to deformation and to softening at high temperatures.

Why are refractories important?

Refractories play a critical role in the daily operations of almost every sector of manufacturing. These ceramic materials are essential for all heat-intensive production processes. Without refractories, important industries and the products they produce would not exist.

How are refractory metals made?

Refractory metals, heavy alloys, and hardmetals are typically fabricated by powder processing methods. Their main constituents are extracted from ores as powders and their high melting temperatures prevent processing by conventional melt-based forming technologies.

What are the properties of a good refractory?

Properties Of Refractory Materials

  • Bulk density. It is a general indication of product quality.
  • Porosity. It is defined as the ratio of its pores volume to its total volume.
  • Cold compressive strength.
  • Flexural strength.
  • Wear resistance.