Graphite suppliers/manufacturers

The web site of the International Molybdenum Association (IMOA) [41] includes a list of the IMOA member companies that offer unroasted Mo concentrates that contain molybdenite. Table 19.3 lists suppliers/manufacturers of M0S2. Table 19.4 lists suppliers/manufacturers of different types and grades of graphite. Tables 19.5 and 19.6 lists major suppliers/manufacturers of BN and PTFE powders, respectively. 

Carbon/graphite. Carbon/graphite fibers have demonstrated the widest variety of strengths and moduli and have the greatest number of suppliers (Tables 4.4a and 4.4b). The carbon/graphite fiber manufacturers, as a result of the turmoil in the composite... 

An unexpected outcome from EQA observations appeared when unsatisfactory material was unknowingly used at one time for the manufacture of atomic absorption graphite furnaces. Several laboratories were aware of unsatisfactory IQC for their blood lead methods and strived to find an explanation but it was only when the FQA data revealed a widespread problem that a group of participants compared their recent experience and were able to confirm with the suppliers that inferior graphite had been employed. 

Production of carbon electrodes is a capital-intensive business. Two suppliers dominate the prebaked market. Carbon paste producers are more numerous and tend to serve local markets. There is no international standard for the threaded joints on carbon electrodes. Manufacturers of straight pin carbon electrodes have followed the physical specifications adopted for graphite electrodes (37). Unified standards do not exist for pinless joints resulting in limited interchangeability among brands. Electrode diameters are offered in both English and metric sizes with no restrictions on new or unique diameters. 

The zinc/graphite composite bath, which is based on a modification of a conventional bright acid chloride was developed by a plating process supplier, working with the Ford Motor Company. The deposit resembles a black phosphate coating and is specified by some car manufacturers for black fasteners used under the hood. 

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