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Evaluation of Hard Materials Using Eco-Attributes Md.
Eco-attributes of some selected hard materials.
Categories of hard materials in terms of eco-attributes.
Categories Reasons Position of Hard Materials used in this study (based on the results in Figs. 3-4) A Close to idea materials Alumina based hard materials B Some cases close to ideal materials some cases not Zirconia based hard materials Silicon Carbide based hard materials C Relatively far from ideal materials Boron Nitride based hard materials D Mostly far from the ideal materials Boron Carbide based hard materials Sensitivity Analysis An obvious question is that, what if the membership functions of the linguistic classes (fuzzy numbers) in Table 1 are defined differently?
The environmental impact of Boron Nitride based materials remains between that of Zirconia and Boron Nitride based materials

Ram, Trend for thermoelectric materials and their Earth abundance, Journal of Electronic Materials. 41 (2012) 1011-19
Journal of Materiomics.1 (2015) 92-105
Casey, Research progress on polymer–inorganic thermoelectric nanocomposite materials, Progress in Polymer Science. 37 (2012) 820– 841
Ismall, Combination of PVA with Graphene to Improve the Seebeck Coefficient for Thermoelectric Generator Applications, Journal of Electronic Materials. 44,1, (2015) 420-424
Introduction of porous structure: A feasible and promising method for improving thermoelectric performance of Bi2Te3 based bulks, Journal of Materials Science & Technology. 34 (2018) 2458–2463

Surface Science and Engineering, Vol. 4, No. 1 (2010) [2] H.
Conrad: Effects of Temperature and Ram Speed on the Flow Pattern in Axisymmetric Extrusions of 2024 Al Alloy, Materials Science and Engineering, 12, pp. 47-58 (1973) [4] J.X.
Takahashi: Experimental simulation of metal flow in porthole-die extrusion, Journal of Materials Processing Technology, 49 pp. 1-11 (1995) [5] H.
Valberg: Metal flow in the direct axisymmetric extrusion of aluminum, Journal of Materials Processing Technology, 31, pp. 39-55 (1992) [7] Y.
Murakami: Metal flow in porthole die extrusion of aluminum, Journal of Materials Processing Technology, 121, pp. 107-115 (2002) [9] T.

Journal of Composite Materials, 1989. 23(9): p. 890
Yi, Mechanical behavior of textile composite materials using a hybrid finite element approach.
Journal of Materials Science, 1997. 32(20): p. 5445-5455
Journal of Composite Materials, 2002. 36(1): p. 93
Materials Science and Engineering: A, 2007. 457(1–2): p. 199-204

When microwave spreads in aqueous materials, water molecules will cause orientation polarization because of microwave filed effect.
But in ordinal material the relative permittivity is less than that value.
Because of these microwave characteristics, it makes the water molecules in the material become the main part of the dielectric constant materials.
Fabric Online Monitoring of Moisture Content, Chinese Journal of Scientific Instrument 2009; 6, 30(6): 671-675
[4] CY Zuo and YM Ding: The Principle and Application with Testing Water Content in Material by Using Microwave Technique, Journal of Microwaves 2005; 4:153-156

Study on the new wall insulation materials of vitrified micro bubbles Jiang Zhu, Guozhong Li a* School of Material Science and Engineering, University of Jinan, Jinan, Shandong, 250022, China a mse_ligz@ujn.edu.cn, * correspondence author Keywords: Vitrified micro bubbles, Expanded perlite, Wall insulation materials, Orthogonal experiments, Mechanism.
However, the inflammability of these organic polymer materials poses high risks in their applications.
Compared with organic materials, inorganic insulation materials are of some advantages, such as non-flammable, ageing resistance, smaller coefficient of variability, higher bond strength, etc.
The performances of wall insulation materials of expanded and vitrified micro bubbles were collected in Table 6.
References [1] Heng Wang and Yong Liao: JOURNAL OF SOUTHWEST UNIVERSITY OF SCIENCE AND TECHNOLOGY Vol. 27(6) (2010), p. 36 (In Chinese) [2] Shengyuan Zhang, Xiu Yang and Yi Jiang: ENERGY OF CHINA Vol. 30(7) (2008), p. 37-39 (In Chinese) [3] Bozhang Qian and Jianfang Zhu: CONSTRUCTION ENERGY CONSERVATION Vol. 37(2) (2009), p. 57 (In Chinese) [4] Tianshu Gu, Lianyu Xie and Ge Chen: BUILDING ENERGY CONSERVATION AND WALL THERMAL INSULATION.

CNT/ZnO hybrids have been shown to enhanced the applications of CNTs as chemical sensors [12] and electrodes materials [13].
In this paper we report a simple technique for the synthesis of CNT/ZnO and CNT/ZnO:Mn hybrid materials by the mechanochemical method.
Conclusion Mechanochemical Synthesis of Cnt/ZnO Hybrid Materials was succefully done by produced two composites, CNT/ZnO and CNT/ZnO: Mn (doped).
Sengodan, Influence of Mn doping on the microstructure and optical property of ZnO, Materials Science in Semiconductor Processing. 11 (2008) 6-12
Sharma, CNT-ZnO nanocomposite thin films: O2 and NO2 sensing, Advanced Materials Research. 585(2012) 235-239

[3] Afifah Md Ali, Recent development in Graphene reinforced aluminium matrix composite, reviews on Advanced Materials Science 2021; 60: 801-817
Zhou (2016): Graphene reinforced metal matrix nanocomposites – a review, Materials Science and Technolog
IOP Conference Series: Materials Science and Engineering, Vol. 653, 2019, id. 12021
Materials Today: Proceedings, Vol. 5, 2018, pp. 20041–20053
Materials and Design, Vol. 88, 2015, pp. 983–989

These materials were collected locally from the Hyderabad region.
[12] Demirel B., “The effect of the using waste marble dust as fine sand on the mechanical properties of the concrete”, International Journal of the Physical Sciences, V.5, Issue 9, pp. 1372-1380, 2010
[15] Hebhoub H., Aoun H., Belachia M., and Houari H., “Use of Waste Marble Aggregate in Concrete”, Elsevier Journal of Construction and Building Materials, V. 25, Issue 3, pp. 1167-1171, 2011
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering, 16(1), 59 – 69
Australian Journal of Basic and Applied Sciences, 3(3), 1616 - 1622

Journal of Thermoplastic Composite Materials 31 (2018) 1470-1482
Mano, The double porogen approach as a new technique for the fabrication of interconnected poly (L-lactic acid) and starch based biodegradable scaffolds, Journal of Materials Science: Materials in Medicine 18 (2007) 185-193
Ho, Preparation of porous 45S5 Bioglass®-derived glass–ceramic scaffolds by using rice husk as a porogen additive, Journal of Materials Science: Materials in Medicine 20 (2009) 1229-1236
Materials Science Forum 861 (2016) 247-252
Ghassemieh, Control of morphological properties of porous biodegradable scaffolds processed by supercritical CO2 foaming, Journal of Materials Science 48 (2013) 3254-3263