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Boron Aluminum Titanium Hydride (BATH) was developed as a radiation shielding material in the NERVA project for space nuclear thermal propulsion applications. It is a metal matrix composite, consisting of particles of boron carbide (29.5–30.8 wt%) and titanium hydride (4.7–5.1 wt%) embedded in an aluminium matrix (64.1 wt%).

References

1. Kaszubinski, Leonard (1973), Shield Materials Recommended for Space Power Nuclear Reactors (PDF), archived from the original (PDF) on February 18, 2017
2. Gruneisen, S.J. (1991), Shielding Requirements for Particle Bed Propulsion Systems (PDF), archived from the original on April 8, 2013
3. Poindexter, A.M., Aluminum-Titanium Hydride-Boron Carbide Composite Provides Lightweight Neutron Shield Material (PDF), archived from the original (PDF) on March 15, 2016
4. BATH Shield Material Development. Westinghouse Electric Corporation (Report). December 1970. doi:10.2172/4226337. WANL-TME-2737.

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