Producing Calcium Copper Manganese Oxide (CaCu3Mn4012) Via Wet-Chemistry Technique (Percipitation Technique)

Muhamad Yazid, Abd Latif (2010) Producing Calcium Copper Manganese Oxide (CaCu3Mn4012) Via Wet-Chemistry Technique (Percipitation Technique). Project Report. UTeM, Melaka, Malaysia. (Submitted)

	PDF (24 pages) Producing_Calcium_Copper_Manganese_Oxide_(CaCu3Mn4012)_Via_Wet-Chemistry_Technique_(Percipitation_Technique)_-_24_pages.pdf - Submitted Version Download (475kB)
	PDF (Full Text) Producing_Calcium_Copper_Manganese_Oxide_(CaCu3Mn4012)_Via_Wet-Chemistry_Technique_(Percipitation_Technique)_-_Full_Text.pdf - Submitted Version Restricted to Registered users only Download (1MB)

Abstract

Preparation of CaCu3Mn4O12 (CCMO) ceramic is carried out via wet chemistry method. The wet chemistry method is employed as it has many advantages such as higher homogeneity and finer microstructure compared to conventional solid-state reaction. In this study, the wet chemistry technique that will be employed is the sol-gel method. CaCO3 (99%, Aldrich), Copper Oxide, CuO (99.9%, Aldrich), and Manganese Nitrate Tetrahydrate, Mn(NO3)2.4H2O (49.7% w/w aqueous solution, Aldrich) is mixed and stirred to produce CaCu3Mn4O12 which then subjected to evaporation, calcination, forming and sintering process. The compound is studied in terms of its phase transformation, electrical properties and hardness properties. Phase transformation is tested using X-Ray Diffraction (XRD) analysis shows phase evolution with different sintering parameters. The electrical properties analysis conducted using Potentiostat Machine yield conductivity value between 2.86 x 10-6 to 9.04 x 10-5, which is much lower compared to solid-state results from previous study. Effect of sintering and calcination parameters on electrical conductivity is discussed. Hardness test is done using Vickers Microhardness Tester. Hardness value for sintered body is found to be influenced by calcination and sintering parameters.

Actions (login required)

View Item