zirconium hydride powder is a type of powder metallurgy product that is used as a strengthening agent and a foaming agent. It is available in a variety of sizes and can be purchased from a number of different companies.
Known applications for this powder include: Strengthening Agent, Foaming Agent and Cemented Carbide Additives. The product is manufactured using a process that includes the following steps:
Comminuting hydride into powder with a particle size of 2 to 10 microns. Compacting this powder to a density approaching that of zirconium metal, relieving the compacting pressure and thereafter sintering the powder in an inert atmosphere at a temperature in the range 1215 to 1230 C.
The hydrogen content of the hydride varies from about 0.069 wt% at 550 deg C to about 1.2% above 900 deg C. The concentration of hydrogen plays a key role in the structure of the hydride and this can have significant effects on its properties.
A zirconium hydride with an increased hydrogen content is harder and stronger than one with a lower amount, but it is also less ductile. This is because the form of the hydrogen in the hydride (precipitated phase) affects qualities like hardness, ductility and tensile strength.
In order to produce high-quality hydrides, it is necessary to know how to control their formation and transformation behavior during hydrogen charging. Fortunately, this can be done in a laboratory setting. In this way, a wide range of hydride structures can be obtained and studied in real time at a synchrotron X-ray radiation facility.