A microkernel implements all drivers as user-space programs, and implements core features like IPC in the kernel itself. A monolithic kernel, however, implements the drivers as a part of the kernel...
Porcelain is made with kaolin clay. Kaolin is white clay that retains its white color when fired. It is fired at temperatures in excess of 1300 C and is more fully vitrified than stoneware. It is usually covered with a clear glaze, which allows the white body to show.
Ceramic and porcelain are widely used in pottery and construction work. One of the reasons for their popularity is their aesthetic beauty. Ceramic is an inorganic material that is made from clay by the process of heating and solidifying. Porcelain is also made from clay but at a higher temperature than ceramics. Normally a higher temperature of 2600 degree Fahrenheit is applied when making Porcelain. Ceramic is opaque whereas porcelain is translucent.