Abstract: Ceramic-metallic composites are disclosed along with the processes for their manufacture. The present invention improves high temperature strength of Al2O3—Al composites by displacing aluminum in the finished product with other substances that enhance the high temperature strength. Each process commences with a preform initially composed of at least 5% by weight silicon dioxide, and the finished product includes Al2O3, aluminum and another substance.

Abstract: Ceramic-metallic composites are disclosed along with the processes for their manufacture. The present invention improves high temperature strength of Al2O3—Al composites by displacing aluminum in the finished product with other substances that enhance the high temperature strength. Each process commences with a preform initially composed of at least 5% by weight silicon dioxide, and the finished product includes Al2O3, aluminum and another substance.

Abstract: Ceramic-metallic composites are disclosed along with the equipment and processes for their manufacture. The present invention improves the densities of these composites by eliminating porosity through the use of a unique furnace system that applies vacuum and positive gas pressure during specific stages of processing. In the fabrication of Al2O3—Al composites, each process commences with a preform initially composed of at least 5% by weight silicon dioxide, and the finished product includes aluminum oxide and aluminum, and possibly other substances.

Abstract: A target system is provided which allows a user to visually identify from a distance if the intended target has been hit. The target uses a base with at least one target disc held to the base. Upon hitting the target disc with a projectile, the disc is dislodged and, being larger than the projectile, leaves an opening in the base that can be visually identified from a distance.

Abstract: A target system is provided which allows a user to visually identify from a distance if the intended target has been hit. The target uses a base with at least one target disc held to the base. Upon hitting the target disc with a projectile, the disc is dislodged and, being larger than the projectile, leaves an opening in the base that can be visually identified from a distance.

Abstract: A tourniquet system for rapid automatic application of adequate pressure to stem bleeding of an injured limb while minimizing tissue damage due to excessive pressure. Pressure is supplied to the limb by inflation of a tourniquet cuff with compressed gas. The invention also relates to a method of controlling bleeding from a limb using the tourniquet system.