According to reports, the Takata Fault Airbag Investigation Alliance, which consists of the world's top ten automakers, recently announced that the group has selected Orbital ATK to investigate the cause of the failure of Takada airbags. Orbital ATK is an aerospace and defense technology company that specializes in rocket propulsion systems, so it is easy to study the ammonium nitrate propellant composition used in Takada airbags, which is suspected to be the root cause of airbag failure. The top ten companies that have jointly investigated the Takada airbags are Toyota, Honda, Fiat Chrysler, BMW, Mazda, Ford, Subaru, Mitsubishi, Nissan and General Motors. The group also selected David Kelly, former acting director of the National Highway Traffic Safety Administration (NHTSA), as the head of the investigation project. Since 1999, Takada has been the only airbag manufacturer to use its current propellant. Former Takata staff and chemists said that the propellant will decompose when exposed to moisture and may cause an explosion if subjected to excessive external force.
Niobium is a kind of gray metal with luster. High purity niobium has a high ductility, but it becomes hard with the increase of impurity content. Niobium has a very low capture cross section for thermal neutrons and is therefore useful in the nuclear industry.
Niobium and niobium-based alloys feature a high melting point, high-temperature strength, small cross-section of thermal neutron capture, high corrosion resistance, the lowest density of heat-resistant metals (tungsten, molybdenum, tantalum, niobium), a high level of manufacturability and weldability.
The high level of ductility, high-temperature strength, corrosion and chemical resistance of niobium make it possible to use it in the production of high-strength low-alloy steels and heat-resistant alloys.
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