Definition of rearward. 1  1 : located at, near, or toward the rear. 2  2 : directed toward the rear a rearward glance.
Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant. It is part of the refractory metals group, which are widely used as minor components in alloys. The chemical inertness of tantalum makes it a valuable substance for laboratory equipment and a substitute for platinum.Tantalum is also used for medical implants and bone repair. Its main use today is in tantalum capacitors in electronic equipment such as mobile phones, DVD players, video game systems and computers.Tantalum, always together with the chemically similar niobium, occurs in the minerals tantalite, columbite and coltan (a mix of columbite and tantalite).antalum is also used for medical implants and bone repair. Its main use today is in tantalum capacitors in electronic equipment such as mobile phones, DVD players, video game systems and computers.
Introduction. Tantalums exploit the tendency of tantalum to form a. protective oxide surface layer. They use tantalum powder, pressed into a pellet shape, as one plate of the capacitor. with the oxide as the dielectric, and an electrolytic solution or. conductive solid as the other plate.lso, tantalum capacitors are superior to aluminum electrolytic capacitors in temperature and frequency characteristics. In comparison with aluminum electrolytic capacitors, they are for similar capacitance and volume ratings generally more expensive, with lower effective series resistance.