Traditional Ceramics And Advanced Ceramics

Advanced ceramics substances and processes used in the development and manufacture of ceramic materials that exhibit special properties.

Traditional ceramics and advanced ceramics. The word earthenware for ceramic pots and jugs is an indication that their raw materials are literally obtained from the ground. Traditional ceramics are processed through a conventional procedure starting from the preparation of ceramic suspensions and ending with sintering as summarized in figure 6 1. Advanced ceramics are differentiated from traditional ceramics such as brick and porcelain by their higher strength higher operating temperatures improved toughness and tailorable properties. This chapter defines the term traditional ceramics which has become associated with the extensive group of more commonly known and longer recognized materials and products a clear line between advanced and traditional ceramics cannot possibly be drawn.

The complexity is increased in processing advanced ceramics compared to traditional ceramics. While precise ceramics have multiple physical and mechanical properties such as high strength high hardness wear resistance corrosion resistance high temperature resistance and thermal shock resistance. What are traditional ceramics. It is used widely because it is found in great quantities naturally and it is easily formed.

Advanced ceramics refers to ceramic materials that have been specifically designed to improve those characteristics. Traditional ceramics ceramic materials that are derived from common naturally occurring raw materials such as clay minerals and quartz sand through industrial processes that have been practiced in some form for centuries these materials are made into such familiar products as china tableware clay brick and tile industrial abrasives and refractory linings and portland cement. Traditional ceramics are comprised of three basic components clay silica quartz and feldspar. Advanced ceramics is a well known commercial application for zircon.

Because of the use of different raw materials traditional ceramics tend to have more complicated chemical structures and compositions. Hesse in concise encyclopedia of advanced ceramic materials 1991. The ceramics from different origins have various textures. Ceramics as is pointed out in the article ceramic composition and properties are traditionally described as inorganic nonmetallic solids that are prepared from powdered materials are fabricated into products through the application of heat and display.

Traditional ceramic materials are mainly produced for daily use or work as building materials. The structure of traditional ceramic is decided by the composition of the clay. Besides traditional ceramic has more impurities both in type and quantity. Clay is one of the most common ceramic raw materials.