Abstract: A separator which can be used for separating water from an air/water mixture in an aircraft where the air is to be supplied to electronics equipment comprises a chamber containing a generally tangential inlet tube through which a mixture is supplied to a curved side wall section of the chamber to separate water from the air by centrifical action. The efficiency of the unit is improved either by moving the filter unit away from the center of the chamber or by providing a guide plate between the filter unit and the curved side wall on which the water coalesces. In this latter case, the filter unit can also be offset from the center of the chamber to give even greater improvement and efficiency.

Abstract: Improved ceramic compositions are provided that are useful in the formulation of microwave susceptors as well as the susceptor articles fabricated therefrom. The novel compositions include a binder and a microwave absorbing material of compounds selected from the group consisting of carbides, borides, or nitrides which compositions are sintered at temperatures above about 800.degree. C.