iosr-JMCE   Volume-11 ~ Issue-2 ~ Mar-Apr 2014

Paper Type	:	Research Paper
Title	:	Effect of Zirconia Substitution on Structural and Mechanical Properties of ZTA Composites
Country	:	Bangladesh.
Authors	:	M. Moazzam Hossen, F.-U.-Z. Chowdhury, M. A. Gafur, A.K.M. Abdul Hakim, M. Belal Hossen
	:	10.9790/1684-11210107

Abstract: Zirconia Toughened Alumina (ZTA) composites are attractive structural materials, which combine the high hardness and elastics modulus of the alumina matrix with additional toughening effects, due to the zirconia dispersion. In the present study, ZTA composites containing different amounts of zirconia (in the range 0–16 wt %) were prepared by slurry method and sintered at 1450ºC and 1550ºC for two hour. Microstructure of the composites was observed using scanning electron microscopy and phase content was detected by means of X- ray diffraction. Mechanical properties such as hardness, elastic modulus and flexural strength were measured.

[1] N. Claussen, J. Am. Ceram. Soc., 59, 1976, 49.
[2] D.W. Shin, K.K. Orr, H. Schubert, J. Am. Ceram. Soc., 73, 1990, 1181.
[3] J. Mullot, J. P. Lecompte, L. Montanaro, A. Negro, J. Euro. Ceram. Soc., 11, 1993, 309.
[4] J. Kishino, A. Nishiyama, T. Sakuma, J. Mater. Sci., 31, 1994, 4991.
[5] R. H. J. Hannink, P. M. Kelly and B. C. Muddle, "Transformation toughening in zirconia-containing ceramics". J. Am. Ceram. Soc., 83, 2000, 461–487.
[6] A. H. Heuer and L. W. Hobbs ed., "Advances in Ceramics", Am. Ceram. Soc. Inc., OH, USA, 3, 1981.
[7] N. Claussen, M. Ruehle and A. H.Heuer, ed., "Advances in Ceramics", Am. Ceram. Soc, Inc., OH, USA, 12, 1984.

Paper Type	:	Research Paper
Title	:	Optimization of Process parameters for a modified chisel edge HSS drill
Country	:	India
Authors	:	P. V. Gopal Krishna, K. Kishore, T. Srihari
	:	10.9790/1684-11210815

Abstract: Drilling is one of the fundamental operations in metal cutting industry. Torque and thrust force has a major influence on the tool life and machining economics. The present study mainly focus on the optimization of process parameters to reduce torque and thrust force on HSS drill and to improve the tool life. Investigations are carried on different work materials such as AA 6041, AISI 1040 and EN8. These investigations are aimed at benefiting small industries that use aforementioned tool work combinations. Regression models are constructed for torque, thrust force.

Key words: drilling, torque, thrust, chisel edge, optimization, regression analysis.

[1] A.Bhattacharyya, A.B. Chattopadhyayand R.Roy, 1981, "Chisel-Edge Modification of Small HSS and Carbide Drills for Improved Machinability", "CIRP Annals-Manufacturing Technology", Volume 30, Issue 1, Page 21-25.
[2] Q.Zhang and J.Wang, 2010, "Geometry, specification and drilling performance of a plane rake faced drill point design", "Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science" ,Volume 224, Issue 2, Page 369-378.
[3] A.Bhattacharyya, A.B.Chatterjee, Inyong Ham, Ajit Bhattacharyya, 1971, "Modification of Drill point for Reducing Thrust", Trans ASME, "Journal of Engineering for Industry", page 1073-1078.
[4] A.K.Chattopadhyay, A.B.Chattopadhyay, 1983, "Wear Characteristics of Ceramic Cutting Tools in Machining Steel", "Wear", Volume 93, Issue 3, Page 347-359.
[5] Audy.J. A., 2008, "Study of computer-assisted analysis of effects of drill geometry and surface coating on forces and power in drilling", ."J. Mater. Process. Tech".,204, Page130–138

Paper Type	:	Research Paper
Title	:	Heat Pipes for Steam Condensation
Country	:	India
Authors	:	T. Mallikharjuna Rao, Dr. S. S. Rao
	:	10.9790/1684-11211619

Abstract: This paper explores the feasibility of using the heat pipe for steam condensation. In this paper an attempt is made to replace thousands of condenser tubes by hundreds of "Heat Pipes".The design details of heat pipe, that is, material of heat pipe, heat pipe length, diameter of heat pipe for condensation purpose is described. The feasibility study was carried out for smooth operation of the heat pipe that is without ceasing during operation. Experimental setup and results of steam condensation studies are presented. Keywords: Wickless heat pipe, thermal syphon, steam condenser, heat transfer coefficient,

[1] Heat Pipes ,Second Edition , P.Dunn and D.A. Reay , Pergamon Press.
[2] Gaugler, R. S., "Heat Transfer Device," U. S. Patent
[3] Grover, G. M., Cotter, T. P., and Erikson, G. E., "Structures of Very High ThermalConductivity," J. Applied Physics, 35, 1990 (1964)
[4] Amir Faghri "Heat Pipe Science and Technology" Taylor and Francis, Washngton Dc,USA, 1995
[5] F. Yang, X. G. Yuan, G . P. Lin, Waste heat recovery using heat pipe heat exchanger for heating automobile using exhaust gas, Applied Thermal Engineering 23 (3) ,2003, 367-372.
[6] S. H. Noie, M. Lotfi, Energy conservation by waste heat recovery in industry using thermosyphon heat exchangers, International solar Energy System, Adelaide, Australia, 2001, pp. 141.

Paper Type	:	Research Paper
Title	:	Application of Fuzzy Cognitive Mapping for Cognitive Task Analysis in Mechanised Mines
Country	:	India
Authors	:	Subrata Maitra, Debamalya Banerjee
	:	10.9790/1684-11212028

Abstract: Man- machine interaction in a mechanized mines involved the excavation of mineral through heavy earth moving machineries and sizing the lump ore of the open cast mines in an overhead crushing, screening and loading (OCSL) plant. Present study proposes a systematic way of analyzing various factors like environmental impact and working problems as the mines are primarily located in remote areas. Selective mining is being done after locating the enriched ore through geological sampling .

[1] Grenaidy A, Karowsky ,W,Shell R.A ,khalil S, S Tunal's etc;(2005)Work compatibility of an integrated diagnostic tool for evaluating musculoskeletal responses to works and stores outcomes, International journal of industrial ergonomics ,35,1109,--11312
[2] Hollnagel E(1998): Cognitive Reliability and Error Analysis Method—CREAM Oxford ,Elsevier ,Science
[3] Stanton ,N.A. Salmon, P.M. Walker, G.H .Baber ,C & Jenkins, D.P (2005) Human Factors Method ,A practical Guide for Engineering and Design, Ashgate : Aldershot
[4] B.Kirwan and L.K,Ainsworth :A guide to task analysis ,published by Taylor and Francis Group
[5] Raskin Jeff ,Oct 2000,:The Human Interface –New Dimensions For designing interactive systems, Published & sold by Amazon.com
[6] Ritchie J and Spencer L (1994): Qualitative Data Analysis for applied policy research, in A.Bryman & R.G.Burgess (eds) Analyzing Qualitative data ,1994,pp173—194
[7] Feng Yongquing, Wu Wenchuan , Zhan Boming ,Li Wenyuan ,''Power systems operation risk assessment Using Credibility theory ,IEEE Transactions on Power systems,Vol 23,No 3,2008
[8] Laurids Boring Ronald (2009) : ‗'Human Reliability analysis in Cognitive engineering and system design ‗' Sandia National Laboratories ‗New Mexico
[9] Lee K,W, Tillmann F, Higgins J,J (1988) A literature survey of the human reliability component in a man machine system,IEEE Transactions on reliability ,37(1),24—34 .
[10] Kekuland L.J.& Svensen O(1997) :Human errors and work performance in a nuclear power plant control room; associations with work related factors and behavioural coping ,Reliability engineering and systems safety 56,5—15.
[11] Basra and KIRWAN,1998G Basra and B.Kirwan: Collection of offshore human error probability data,Reliability Engineering and System Safety 61(1998)pp 77-93