kiln-fired clay works of sculpture or pottery are called
Kiln Kilns are an essential part of the manufacture of all ceramics. Ceramics require high temperatures so chemical and physical reactions will occur to permanently alter the unfired body. In the case of pottery, clay materials are shaped, dried and then fired in a kiln. The final characteristics are determined by the composition and preparation of the clay body and the temperature at which it is fired. After a first firing, glazes may be used and the ware is fired a second time to fuse the glaze into the body. A third firing at a lower temperature may be required to fix overglaze decoration. Modern kilns often have sophisticated electrical control systems to firing regime, although pyrometric devices are often also used.
Benin Bronzes In tropical Africa of the continent's center, the technique of lost-wax casting was developed early, as the works from Benin show. When a king died, his successor would order that a bronze head be made of his predecessor. Approximately 170 of these sculptures exist, and the oldest date from the twelfth century.[15] The Oba, or king, monopolized the materials that were most difficult to obtain, such as gold, elephant tusks, and bronze. These kings made possible the creation of the splendid Benin bronzes; thus, the royal courts contributed substantially to the development of sub-Saharan art.[16] In 1939, heads very similar to those of the Benin Empire were discovered in Ife, the holy city of the Yoruba, which dated to the fourteenth and fifteenth centuries. This discovery supported an earlier tradition holding that it was artists from Ife who had taught Benin the techniques of bronze metalworking.[17] Recognition of the antiquity of the technology in Benin advanced when these sculptures were dated definitively to that era.[18]