High performance materials in coal conversion utilization. Technical progress report, January 1--March 31, 1995 | Zendy

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High performance materials in coal conversion utilization. Technical progress report, January 1--March 31, 1995

Publication year - 1995

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/171243

Subject(s) - coal , ceramic , metallurgy , materials science , corrosion , slag (welding) , composite number , waste management , pulverized coal fired boiler , coating , environmental science , forensic engineering , engineering , composite material

The object of this grant is to test, analyze, and improve the heat and coal-slag corrosion resistance of a SIC(p)/AI203 ceramic composite tubular material. The material will be evaluated for its ability to withstand the pressures, temperatures and corrosion attack which would be encountered within a coal-fired high-temperature, high pressure air heater. The evaluation will include strength testing at elevated temperatures. The feasibility of several joining and coating techniques will also be investigated. Results from the following tasks and subtasks are presented: Task 1--materials; Task 2--pre and post test material characterization; Subtask 2A--strength of materials testing and analysis; Subtask 2B--corrosion thermodynamic analysis; Subtask 3A--bench scale lab tests; Subtask 3B--field exposure tests; and Task 4--project management. An appendix explains the coating of Lanxide SiC/Al{sub 2}O{sub 3} ceramic composite

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