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WC-Co cemented carbides are composites constituted for two interpenetrating networks. In this work, it is attempted by combining massive nanoindentation, statistical analysis, and implementation of a thin film model for deconvolution of the intrinsic hardness and flow stress of the metallic phase. Plotting of the experimentally data as a function of the binder mean free path results in a Hall-Petch strengthening relationship with a slope (ky) of 0.98 MPa*m1/2. This value points out the effectiveness of WC-Co phase boundaries as strong obstacles to slip propagation; and thus, for toughening of brittle phase by means of crack-bridging ductile reinforcement. Title:Hall-Petch strengthening of the constrained metallic binder in WC-Co cemented carbides: Experimental assessment by means of massive Nanoindentation and statistical analysis.Dear Professor E. J. Lavernia, Thank you for your email of July 23 informing about your positive consideration for publication of the referred manuscript, upon completion of mandatory revisions, in Materials Science and Engineering -A. From the report appended in your email, it seems that the reviewer has read the paper carefully. Please thank him for his care and criticism. As requested, we have considered the indicated comments, and our responses (and modificationsred color text in the revised version) are as follows:Reviewer#1's comments (RC): The idea of this paper is good and the paper deserves to be published in MSEA but after the addition of the mathematical equations used in treating the data. RC1.-The introduction need to be re-polished carefully from two points: a) Conversion of long statement to short one, and b) Simplify the statements.Example: There are some long statements and it is prefer to be shortened for example, in the introduction, "Within this evolution trend, although the intrinsic….for enhancing material performance", This statement need to be shortened and to be simplified.Response: We agree with this comment and the introduction has been re-polished following the comments mentioned by the reviewer as it is presented below:WC-Co cemented carbides, usually referred to as hardmetals, are established forefront materials for tools, structural components and wear parts with stringent requirements.They exhibit an exceptional combination of strength, toughness and wear resistance as a result of the extremely different properties of their two interpenetrating constitutive phases: hard, brittle carbides and a soft, ductile metallic binder. Historically, the ever increasing implementation of hardmetals has mainly taken place on the basis of replacement of steels in machining tools. Main reasons for it are the higher hardness Abstract: WC-Co cemented carbides are composites constituted for two interpenetrating networks. In this work, it is attempted by combining massive nanoindentation, statistical analysis, and implementation of a thin film model for deconvolution of the intrinsic hardness and flow stress of the metallic phase. Plotting of the experimentally data as a fun...

This work provides a parametric analysis of surface patterning by laser interference on 3Y-TZP. Best conditions in terms of quality of the produced pattern and minimum material damage are obtained for low number of pulses with high laser fluence. With the employed method we can produce zirconia materials with controlled topography that are expected to enhance biological response and mechanical performance of dental components.

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