PPT-Introduction to ceramics

What you need to know to get started Clay is Weathered decomposed Granite rock A Clay Body is pure clay mixed other materials to make a desirable colour and texture of clay Earthenware the type we will use Fired at 10151200 C comes in red or white This is a LOW FIRE clay Other clays are fired much hotter. No longer limited to the esthetic zone highstrength ceramic core materials with porcelain veneers are now widely used for both anterior and posterior restorations 45 In implant dentistry however the use of a titanium abutment can compromise the tran Introduction t is commonly recognised that any crystallisation process may under speci64257c conditions lead to exag gerated grain growth Such conditions are observed during the formation of polycrystalline bodies when the crystal grains are in mutu Ceramics Module - 10 1) Types and applications of ceramics 2) Fabrication and processing of ceramics Contents Introduction – Ceramics  The word ‘ceramic’ is originated f Leaders in Engineered Ceramics As the world’s largest manufacturer of engineered ceramics, CoorsTek provides innovative ESD-safe ceramic components for semiconductor technology leaders around MATPrimary involvement in ceramics Advanced/engineering ceramics nergy/environmental ceramicsefractory ceramics Structural clay products Whitewares/stoneware/pottery products Vendor/supplier Raw mate 1 Introduction 2 The History of Technical Ceramics 3 Ceramic Materials 3.1 Definitions 3.2 Materials Groups 3.3 Classification 3.4 Material Descriptions 3.4.1 Silicate Ceramics 3.4.1.1 Technical Por Hand Building Techniques . Coiled Pottery . - . One of the oldest ways of forming pottery. Long . strands/snakes/coils . of clay which are laid on top of each other and joined through . slipping and scoring. . Ceramics Vocabulary. 1. . Ceramics. – an object made from clay. 2. . . Plastic. – clay that is soft and easy to work with. 3. . . Leatherhard. – clay that is slightly dried and holds its shape. Mrs. . Morawa. TPHS Ceramics. What is Ceramics?. Ceramics is the art and science of making more or less permanent objects from earthy, organic materials when they are subject to heat.. The elements > EARTH, WATER, AIR and FIRE are all necessary in making ceramics.. Applications. Classification (spam). Clustering (news stories, twitter). Input correction (spell checking). Sentiment analysis (product reviews). Information retrieval (web search). Question answering (web search, IBM’s Watson). They are distiguished by its bonding which is ionic or covalent bonding. High elastic modulus and hardness. High melting point. Low thermal expansion. Good chemical resistance. Brittle. Thermal insulators. Pottery or clay sculpture fired at high temperatures in a kiln to make them harder and stronger. . Ceramics Around the World. Ceramics have been used, throughout the world, for tens of thousands of years.. Beverages in aluminum and glass containers retain their carbonization (i.e., “fizz”) for several years, whereas those in two-liter plastic bottles “go flat” within a few months. .. There is a plastic . The art of making objects out of clay. What is Clay?. A fine grain material from the earth that is naturally found in soil and sedimentary rock. . Lesson 1a. Hand building Techniques. Pinch - Forming a clay object .