title: High-pressure-low-temperature x-ray power diffractometer.
abstract: A high-pressure technique for x-ray diffraction studies at low temperatures is described. The system consists of a Bridgman anvil type high-pressure device with either tungsten carbide or boron carbide anvils, a liquid He cryostat, and x-ray diffractometer operating in Debye-Scherrer geometry. The newly developed boron carbide anvil cell is capable of containing a liquid pressure transmitting medium. The precision of the lattice parameter determination is discussed and the effect of nonisostatic stress components on the diffraction pattern is examined.
authors.affiliation: Max-Planck-Institut fur Festkorperforschung 7 Stuttgart 80, Federal Republic of Germany.
authors.forename: K
authors.initials: K
authors.lastname: Syassen
authors.forename: W B
authors.initials: WB
authors.lastname: Holzapfel