1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 03 2012 03 06 N Status No Replacement, No Usage G. Weber, NA 2003 10 10 Revised Para 3.0 inserted; para 3.10 and 4 deleted 1963 10 09 Released E7-2833 Controlled document at www.MATS Copyright 2012, Ford Global Technologies, Inc. Page 1 o
2、f 2 ALUMINUM OXIDE SINTERED ESE-M10A18-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a high strength alumina ceramic. 2. APPLICATION This specification was released originally for material used as a thrust washer on the water pump impeller. 3. REQUIREMENTS (M
3、olded Properties) 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.1 COLOR White 3.2 SPECIFIC GRAVITY 3.47 - 3.76 (ASTM C 20) 3.3 FLEXURAL STRENGTH, min 276 MPa (AS
4、TM D 116 - 22 +/- 3 C) 3.4 HARDNESS, ROCKWELL 45N, min 70 (ASTM E 18) 3.5 WATER ABSORPTION, max 0.15% (ASTM C 20) 3.6 IMPACT RESISTANCE, min 0.68 J (ASTM D 256) 3.7 COMPRESSIVE STRENGTH, min 1655 MPa (ASTM D 116) 3.8 IMPENETRABILITY (DYE PENETRATION) Impervious (ASTM D 116) 3.9 THERMAL SHOCK TEST (O
5、n Finish Piece) No spalling transverse or radial breaks. Test Method: Sample shall be subjected to 12 cycles of heating and cooling. Hold sample for one minute in boiling water and one minute in deep freeze box at -18 C. ENGINEERING MATERIAL SPECIFICATION ESE-M10A18-A Copyright 2012, Ford Global Technologies, Inc. Page 2 of 2 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF THERMAL EXPANSION (ASTM C 372) -150 C to 20 C 1.6 - 1.9 x 10-6/C 20 C to 260 C 3.3 - 3.9 x 10-6/C
