Preparation of Electro-deposited Ni-Mo-Al Coating and Its Properties
Ni-Mo-Al coatings were prepared on Ni alloy by electrodeposition method. The effects of current density, frequency, duty cycle and electrodeposition time on mass percentages of Al of Ni-Mo-Al coatings were researched, respectively. The properties of wear weight loss and friction coefficients were investigated respectively. Ni-Mo-Al coatings were characterized with inductively coupled plasma-atomic emission spectroscopy (ICP-AES), energy-dispersive analyses of X-ray (EDAX), scanning electron microcopy (SEM), and X-ray diffraction (XRD) techniques, respectively. When electro-deposition parameters: current density 18.5 A/dm 2, frequency 5000 Hz, duty cycle 0.5 and electrodeposition time 20 min, mass percentages of Al of Ni-Mo-Al coating is as high as 2.04%. Ni-Mo-Al coatings show higher wear weight loss and lower friction coefficient compared with those of Ni-Mo coatings. The wear weight loss of Ni-Mo-Al coating is 1.27 times higher than that of the Ni-Mo coating. The friction coefficient of Ni-Mo and Ni-Mo-Al coatings are 0.816 and 0.540 respectively. The Ni-Mo and Ni-Mo-Al coatings have similar nodular microstructure. The nodules of Ni-Mo-Al coating are smaller than those of the Ni-Mo coating. The parts of nickel are replaced by Mo and Al respectively in the Ni lattice.
The thermal behavior of CMAS-infiltrated thermal barrier coatings
Abstract Understanding the mechanisms by which the durability and functionality of thermal barrier coatings (TBCs) are compromised by the infiltration of molten calcium–magnesium alumino-silicates (CMAS) requires an assessment of the effects on the thermal and mechanical properties of the coating. This study focuses on quantifying the effect of CMAS on the thermal properties and heat transport in TBCs. The thermal properties of a 7 wt.% yttria-stabilized zirconia (7YSZ) TBC deposited on a superalloy substrate by air plasma spray (APS) were measured before and after CMAS infiltration. A rise in both volumetric heat capacity and thermal conductivity of the coating was observed upon infiltration. Calculations to explain these trends were performed for a model TBC system and found to be in good agreement with the measured results. The evolution of the phase constitution of the coating was analyzed by Raman spectroscopy and the integrity of the interface was characterized by optical examination of cross sections. These tests determined that the coating remained in good contact with the substrate and experienced no phase change after infiltration.
Institutionalizing Corporate Social Responsibility: A Study of Provisions and Implications of Indian Companies Act 2013
Abstract 
The spotlight of this chapter is to understand the connection between public policy and corporate social responsibility (CSR); in other words – the institutionalization of CSR. What is the role of the government for setting standards and mandating for ensuring responsibility? The emerging accepted wisdom in policy and academic circles is that many sustainability solutions are likely to result from institutional (i.e., governance) reform. A perceptive on CSR evolving as an institution of broader societal governance appears as a promising opportunity to delve into at a point in time when conventional rules, actors, and markets that steered the global economy demonstrate to be undergoing credibility crisis. CSR therefore must be considered within the wider field of institutions for governing the corporation and the economy. This chapter is exploratory as it dwells into theoretical underpinning of emerging mandatory CSR as well as provides empirical mapping of corporate responses to the new enacted legislation. The CSR analysis presented is based on a content analysis of the information contained in the annual reports of some prominent companies, government documents, audits reports, companies websites, and newspaper reports, which will provide us evidences of responses of corporates toward the CSR provisions.