Numerical modeling and experiments investigate DMLS processes of Ti-6Al-4V products. Energy deposition density helps determine process response. Green micro-machining enables small-scale SiC features with potential for defects
Slip casting is a ceramic forming technique used for complex shapes. Clay body slip is poured into plaster moulds to form cast layer. Technique originated in China during Tang dynasty. Ralph Daniels of Corbridge independently reinvented it in England around 1745
Traditional ceramics date back to Neolithic Period (10,000 years ago). Early pottery reached sophistication in China, Middle East, and Americas. Metal Age saw quartz sand used for metal casting molds. Industrial Revolution improved ceramic processing in 18th-19th centuries
Traditional ceramics date back to Neolithic Period (10,000 years ago). Early pottery reached sophistication in China, Middle East, and Americas. Metal Age saw quartz sand used for metal casting molds. Romans developed lime-mortar cements for civil engineering
Feldspar is Earth's most abundant mineral group, comprising 60% of outer crust. Hard (6-6.5 on Mohs scale) with glassy luster and good cleavage. Density ranges from 2.56 (K-feldspar) to 2.78 (albite to anorthite)
Pottery is clay modeled, dried, and fired with glaze. Clay decomposes from earth's crust over millions of years. First pottery was pinch pots made from clay balls. Ancient Egyptians developed finer clays and higher-temperature firing. Chinese produced black pottery with round bases by 3500 BC