is an inorganic, nonmetallic solid material comprising metal, nonmetal or metalloid atoms primarily held in ionic and covalent bonds.They are generally made by taking mixtures of clay, earthen elements, powders, and water and shaping them into desired forms.
Pottery is the ceramic material which makes up potterywares, of which major types include earthenware, stoneware and porcelain. The place where such wares are made is also called a pottery (plural potteries). Pottery also refers to the art or craft of a potter or the manufacture of pottery. A dictionary definition is simply objects of fired clays. Pottery is made by forming a clay body into objects of a required shape and heating them to high temperatures in a kiln which removes all the water from the clay, which induces reactions that lead to permanent changes including increasing their strength and hardening and setting their shape. Ceramics are classified as inorganic and nonmetallic materials that are essential to our daily lifestyle. Ceramic and materials engineers are the people who design the processes in which these products can be made, create new types of ceramic products, and find different uses for ceramic products in everyday life. Ceramics are all around us. Porous ceramics are made by the sol-gel process. These ceramics have spongelike structures, with many porelike lacunae, or openings, that can make up from 25 to 70 percent of the volume. The pore size can be large, or as small as 50 nanometers (2 × 10 −6 inches) in diameter. Manufacture of Traditional Ceramics. Traditional ceramics are made from natural materials such as clay that have been hardened by heating at high temperatures (driving out water and allowing strong chemical bonds to form between the flakes of clay). A ceramic is an inorganic, nonmetallic solid material comprising metal, nonmetal or metalloid atoms primarily held in ionic and covalent bonds. The crystallinity of ceramic materials ranges from highly oriented to semi-crystalline, and often completely amorphous (e.g., glasses). 1 Ceramics are also more chemically resistant and can be used in wet environments where steel bearings would rust. 2  In some cases, their electricity-insulating properties may also be valuable in bearings. 3  Two drawbacks to ceramic bearings are a significantly higher cost and susceptibility to damage under shock loads. Ceramics are generally made by taking mixtures of clay, earthen elements, powders, and water and shaping them into desired forms. Once the ceramic has been shaped, it is fired in a high temperature oven known as a kiln. Often, ceramics are covered in decorative, waterproof, paint-like substances known as glazes. Ceramic and materials engineers are the people who design the processes in which these products can be made, create new types of ceramic products, and find different uses for ceramic products in everyday life. Ceramics are all around us. Video: Defining ceramics. A ceramic is an inorganic non-metallic solid made up of either metal or non-metal compounds that have been shaped and then hardened by heating to high temperatures. In general, they are hard, corrosion-resistant and brittle. Ceramic comes from the Greek word meaning ‘pottery’. The major types of pottery are described as earthenware, stoneware and porcelain. Earthenware is used extensively for pottery tableware and decorative objects. It is one of the oldest materials used in pottery. The clay is fired at relatively low temperatures (1,000–1,150°C), producing a slightly porous, coarse product. Porcelain is also considered as pottery made by heating raw materials, generally including clay in the form of kaolin, in a kiln to temperatures between 1,200 °C (2,192 °F) and 1,400 °C (2,552 °F). Pottery is mainly of three types. Earthenware used for pottery tableware and decorative objects with a composition of 25% ball clay, 28% kaolin, 32% quartz and 15% feldspar. The word  ceramic comes from the Greek word κεραμικός (keramikos), of pottery or for pottery, from κέραμος (keramos), potter's clay, tile, pottery. The earliest known mention of the root ceram- is the Mycenaean Greek ke-ra-me-we, workers of ceramics, written in Linear B syllabic script. 1 Ceramics are also more chemically resistant and can be used in wet environments where steel bearings would rust. 2  In some cases, their electricity-insulating properties may also be valuable in bearings. 3  Two drawbacks to ceramic bearings are a significantly higher cost and susceptibility to damage under shock loads.
https://en.wikipedia.org/wiki/Pottery http://depts.washington.edu/matseed/mse_resources/Webpage/Ceramics/ceramics.htm http://www.chemistryexplained.com/Bo-Ce/Ceramics.html https://en.wikipedia.org/wiki/Ceramic http://depts.washington.edu/matseed/mse_resources/Webpage/Ceramics/ceramics.htm http://sciencelearn.org.nz/Contexts/Ceramics/Science-Ideas-and-Concepts/What-are-ceramics http://www.answers.com/Q/What_is_pottery_made_out_of https://en.wikipedia.org/wiki/Ceramic
what are ceramics made of