1. Department of Metallurgical and Materials Engineering; National Institute of Technology; Mangalore 575 025 India
2. Rubber Technology Center; Indian Institute of Technology; Kharagpur 721 302 India
3. Kompetenzzentrum Holz GmbH; W3C, A-9300 St. Veit/Glan; Klagenfurter Strass 87-89 Austria