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

By A. O. Surendranathan

All Refractories Are Ceramics yet no longer All Ceramics Are Refractories

Ceramics and refractories conceal quite a lot of fields and functions, and their relevance may be traced way back to 24,000 BC to the 1st man-made piece of earthenware, and as lately because the past due 1900s while ceramics and ceramic matrix composites have been built to resist ultra-high temperatures. starting with an in depth background of ceramics, An advent to Ceramics and Refractories examines each element of ceramics and refractories, and explores the relationship among them. The publication establishes refractories as a category of ceramics with excessive fusion issues, introduces the basics of refractories and ceramics, and likewise addresses numerous functions for each.

Understand Ceramic homes and Refractory Behavior

The publication information functions for typical and artificial ceramics, in addition to conventional and engineering functions. It specializes in a few of the thermal and thermo-mechanical houses of ceramics, classifies refractories, describes the foundations 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 proper case study.

Divided into 3 sections, this article:

  • Introduces and information the functions 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 structures: unary, binary, and ternary
  • Considers corrosion of ceramics and refractories, mess ups 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 sorts of thermal treatments
  • Defines mechanical homes, and thermal and thermo-mechanical properties
  • Classifies fabrics and designates classes

Addressing issues that come with corrosion, functions, thermal houses, and kinds of refractories, An advent to Ceramics and Refractories offers you a easy wisdom of the basics of refractories and ceramics, and offers a transparent connection among refractory habit and ceramic homes to the training engineer.

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Extra info for An Introduction to Ceramics and Refractories

Example text

As the name suggests, compatibility matrix says whether a process and a material is compatible or not. 1 MAPS 1 Code Position of the Digit First Second Third Fourth Fifth Sixth Seventh Eighth Illustration Batch size Major dimension Shape Tolerance Surface roughness Service temperature Corrosion rate Environment 31 Selection of Materials the materials by columns. The elements in these matrices are 0, 1, or 2, where 0 says incompatibility, 1 is difficult compatibility, and 2 is ­compatibility. On running the program, a list of combinations of the process and the ­material for producing the component is obtained.

The first man-made ceramic product was earthenware, the making of which dates back to about 24000 bc. The raw material for this product was clay, which was mixed with water, then molded into a shape, dried, and fired. During 7000–6000 bc, lime mortar was used for construction. The gaps between stones were filled with this material. It was also used to make thickwalled containers. In the period from 7000 to 5000 bc, floors were laid with a plaster-like cementitious material. The interiors of walls were given a coating of this material, and they were later decorated.

Examples are doped ZrO2, beta alumina, NaCl, AgBr, KCl, BaF2, and various lithium compounds. Ionic conductors are used in lithium batteries, oxygen sensors, and solid oxide fuel cells. • Superconductors: A series of ceramic compositions were identified between 1986 and 1988 that exhibited superconductivity between 90 and 120 K. 8 shows ceramic superconductor wires wound into a cable. 5 Ceramics as Magnets The first magnet used was naturally occurring magnetite. Ceramic magnets are termed as ferrites.

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