South Sudan Flag and Description. The flag of South Sudan was adopted following the signing of the Comprehensive Peace Agreement that ended the Second Sudanese Civil War. The flag was previously used as the flag of the Sudan People's Liberation Movement.
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). ceramic material is an inorganic, non-metallic, often crystalline oxide, nitride or carbide material. Some elements, such as carbon or silicon, may be considered ceramics. Ceramic materials are brittle, hard, strong in compression, weak in shearing and tension.
The word  ceramic comes from the Greek word ÎºÎµÏÎ±Î¼Î¹ÎºÏÏ (keramikos), of pottery or for pottery, from ÎºÎ­ÏÎ±Î¼Î¿Ï (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.eramics generally can withstand very high temperatures, such as temperatures that range from 1,000 Â°C to 1,600 Â°C (1,800 Â°F to 3,000 Â°F). A glass is often not understood as a ceramic because of its amorphous (noncrystalline) character.