Phase, thermal and impedance studies of nanosize via mechanical milling and sintering》.pdfVIP

Superlattices and Microstructures 49 (2011) 17–31 Contents lists available at ScienceDirect Superlattices and Microstructures journal homepage: /locate/superlattices Phase, thermal and impedance studies of nanosize Li WO 2 4 via mechanical milling and sintering Tan Kim Han ∗, Roslina Ahmad, Mohd Rafie Johan Advanced Materials Research Laboratory, Department of Mechanical Engineering, University of Malaya, Lembah Pantai, 50603 Kuala Lumpur, Malaysia a r t i c l e i n f o a b s t r a c t Article history: Nanosize Li WO is successfully synthesized using a mechanical 2 4 Received 29 December 2009 milling method. The mean particle size of milled Li WO is 37 nm 2 4 Received in revised form and 31 nm as measured by Transmission Electron Microscopy 1 October 2010 (TEM) and X-ray diffraction (XRD) analysis, respectively. The Accepted 20 October 2010 Available online 3 November 2010 calculated lattice parameter of as-received and milled powder are 0.8326 and 0.8321 nm, respectively. Both powders have been hydrated at room temperature and are highly crystalline with Keywords: Nanosize Li WO the presence of different