Methods of forming composite materials include coating particles of titanium dioxide with a substance including boron and a substance including carbon, and reacting the titanium dioxide with the substance including boron and the substance including carbon to form titanium diboride. The wireless device, such as a cell phone, personal digital assistant, or palm top computer may include an auxiliary device such as a bar code scanner, a magnetic stripe card reader, or a printer. An electrical control circuit with a battery are suitably mounted within the cavity. Each of the computers includes a second port for transferring patient data. Through the use of the invention, at least one of iron ores and additives is dried and conveyed to thereby enhance energy efficiency and minimize the amount of required equipment.