Ceramic protection plates brazed to aluminum brake discs

被引：15
作者：
Gorjan, L. [1 ]
Boretius, M. [2 ]
Blugan, G. [1 ]
Gili, F. [3 ]
Mangherini, D. [3 ]
Lizarralde, X. [4 ]
Ferraris, M. [5 ]
Graule, T. [1 ]
Igartua, A. [6 ]
Mendoza, G. [6 ]
Kuebler, J. [1 ]
机构：
[1] Empa Swiss Fed Labs Mat Sci & Technol, Lab High Performance Ceram, Uberlandstr 129, CH-8600 Dubendorf, Switzerland
[2] Listemann Technol AG, Wirtschaftspk 34,POB 247, LI-9492 Eschen, Liechtenstein
[3] CRF, Str Torino 50, Orbassano, Italy
[4] Garaia Berrikuntza Gunea, Fagor Ederlan Edertek, Isasi Kalea 6,Posta K 19, Arrasate Mondragon 20500, Gipuzkoa, Spain
[5] POLITO Politecn Torino, DISAT Dept Appl Sci & Technol, Corso Duca Abruzzi 24, I-10129 Turin, Italy
[6] IK4 TEICNIKER, Pk Teknol,Calle Inaki Goenaga 5, Eibar 20600, Gipuzkoa, Spain
来源：
CERAMICS INTERNATIONAL | 2016年 / 42卷 / 14期
关键词：
Ceramic; Wear resistant; Soldering; Brazing; Aluminum brake disc; SHEAR-STRENGTH; COATINGS; AL2O3; MICROSTRUCTURE; WEAR; WETTABILITY; RESISTANCE; SOLDERS; ALLOYS; JOINTS;
D O I：
10.1016/j.ceramint.2016.07.035
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Aluminum alloys are light-weight and one of the most interesting material solutions to optimize the strength/weight ratio to reduce car weight; however they are also relatively soft and therefore cannot be used for intensive wear applications. We developed an aluminum alloy part combined with hard and wear-resistant A1203-based ceramic plates on the surface for demanding mechanical parts for automotive industry such as disc brakes. Tribological tests of various engineering ceramic materials were performed in order to find a ceramic material with a combination of coefficient, wear resistance and thermal energy dissipation for the car brakes. A1203-based ceramic showed promising properties, as well as being cost effective. Two different approaches to braze ceramic on aluminum were investigated. A two-step brazing process using Cu-Sn-Ti-Zr filler alloy and a single step ultrasonic active soldering with Sn-Ag-Ti filler alloy. Larger areas of aluminum could be covered with a segmented brake design in which many ceramic plates were joined surface. Comparable tribological properties to those of the bulk ceramic material were achieved. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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页码：15739 / 15746
页数：8
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