Download e-book for iPad: An Introduction to Ceramics and Refractories by A. O. Surendranathan

By A. O. Surendranathan

ISBN-10: 148222044X

ISBN-13: 9781482220445

All Refractories Are Ceramics yet no longer All Ceramics Are Refractories

Ceramics and refractories hide a variety of fields and functions, and their relevance should be traced way back to 24,000 BC to the 1st man-made piece of earthenware, and as lately because the overdue 1900s while ceramics and ceramic matrix composites have been constructed to resist ultra-high temperatures. starting with a close heritage of ceramics, An advent to Ceramics and Refractories examines each element of ceramics and refractories, and explores the relationship among them. The e-book establishes refractories as a category of ceramics with excessive fusion issues, introduces the basics of refractories and ceramics, and in addition addresses numerous functions for each.

Understand Ceramic houses and Refractory Behavior

The e-book info purposes for common and artificial ceramics, in addition to conventional and engineering purposes. It makes a speciality of a few of the thermal and thermo-mechanical houses of ceramics, classifies refractories, describes the rules of thermodynamics as utilized to refractories, and highlights new advancements and functions within the ceramic and refractory fields. It additionally provides end-of-chapter difficulties and a suitable case study.

Divided into 3 sections, this article:

  • Introduces and info the purposes of ceramics and refractories
  • Discusses the choice of fabrics and the 2 phases in selection
  • Describes the section equilibriums in ceramic and refractory systems
  • Outlines the 3 vital platforms: unary, binary, and ternary
  • Considers corrosion of ceramics and refractories, disasters in ceramics and refractories, and the layout aspects
  • Addresses bonding, buildings of ceramics, defects in ceramics, and ceramics’ microstructures
  • Covers the creation of ceramic powders ranging from the uncooked materials
  • Explains 4 forming methods
  • Highlights 3 kinds of thermal treatments
  • Defines mechanical homes, and thermal and thermo-mechanical properties
  • Classifies fabrics and designates classes

Addressing themes that come with corrosion, purposes, thermal homes, and kinds of refractories, An advent to Ceramics and Refractories provide you with a easy wisdom of the basics of refractories and ceramics, and provides a transparent connection among refractory habit and ceramic homes to the practising engineer.

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Additional resources for An Introduction to Ceramics and Refractories

Sample text

The main rotor-bearing seal used in jet engines is made of impregnated graphite or silicon nitride. Gas turbine engine shaft seals are also made of silicon nitride. • Ceramics as Valves: Alumina or silicon carbide is the material for valves. Gate valves used in an irrigation ditch are made of metal or concrete. Slide-gate valves in ladles holding molten steel are made of ceramics. Alumina is the material used to make oxygen valves of respirators used in hospitals. Ball-and seat valves, made of WC-Co, transformation-toughened zirconia, or silicon nitride, are used in downhole pumps required for deep oil wells.

Refractory linings for drying ovens and tunnels have the sole purpose of thermal insulation of the peripheral walls and roof. Fiber refractories, even glass wool, serve the purpose. Steam boiler walls contain refractory insulation. In basic oxygen furnace (BOF) used for steelmaking, a water-cooled, refractory-armored tube or lance is inserted down through the mouth of the furnace, after charging it. In the bottom blown BOF, two types of bottom plugs are used: (1) dense refractory, through which an array of vertical tuyeres penetrate, and (2) porous, permeable refractory, which serves as an oxygen diffuser.

1 shows a cuneiform tablet. 3 Traditional Ceramics During the Chalcolithic period, copper was produced in clay-lined furnaces. Ceramic containers were made to hold and refine molten metal, and ceramic molds were used to cast the metal. 1 Cuneiform tablet. from quartz, malachite, and natron. Glaze has the same structure as glass. When the temperature of kilns could be increased, complete melting of glass could be achieved. 4 Application of Ceramics in Buildings Ceramics have been used in buildings since early civilizations.

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An Introduction to Ceramics and Refractories by A. O. Surendranathan

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