Abstract: A friction material comprising a sintered mass of iron in which graphite particles are dispersed, which sintered mass is formed from between 13 and 22 vol. % of iron fibers, between 13 and 22 vol. % of iron particles having a particle size of 10-400 .mu.m, between 40 and 70 vol. % of graphite particles having a particle size of 25-3000 .mu.m, and between 10 and 15 vol. % of a metallic binder having a melting point of 800-1140.degree. C., and a method of preparing such a friction material, wherein a mixture of these components is compressed at a pressure of at least 100 MPa so as to form a compact having a desired form and size, and where the compact thus formed is sintered at a temperature between 800 and 1140.degree. C. for a period of time which is sufficiently long for achieving concretion of iron fibers, iron particles and metallic binder.

Abstract: A mat of a liquid-tight, flexible material is provided for the collection of fluid used to treat objects pulled onto the mat. In particular, the mat is used for the collection of deicing fluid during deicing of an aircraft. The mat comprises at least one discharge opening. The mat includes wires for stiffening the mat in the direction of travel on it. The mat may advantageously be formed with grooves for directing the treatment fluid to at least one discharge opening. For use in connection with large mats composed of mutually parallel webs there is provided a fixture for mutual fastening of the webs and sealing of the joint between the webs.