A Novel Temperature Adaptive Nano-crystalline Dry Lubricant plus Hard Phase Composite Coating for Cutting Tools and Advanced Machining Applications

本项目旨在设计、开发和测试一种新型的温度自适应纳米晶干润滑剂（MoS 2 +ZnO）加硬质相（TiN）复合涂层，用于切削工具和先进加工应用。纳米晶体干润滑剂（MoS 2 +ZnO）颗粒涂层将使用创新的静电喷涂（ESC）工艺沉积。 在这个项目中，纳米晶体ZnO颗粒，通过球磨过程与二硫化钼涂层，将使用ESC喷涂到适当的基板上。 随后，使用化学气相渗透（CVI）工艺将硬TiN相渗透到纳米晶体颗粒ZnO基质中。 选择ZnO + MoS 2的组合进行研究，因为它形成氧硫钼酸盐和钼酸盐，这已经表现出很好的潜力，高温applications.The项目是材料和制造研究实验室（MRL）之间的合作在阿肯色州和材料研究和开发（MRD）在瓦伦蒂-Widia大学。 作为该项目的一部分，学生和大学教师将在Valenite进行部分研究。 以这种方式获得的经验将对该项目大有裨益，并将产生一个在纳米技术和先进制造的新兴领域知识渊博的优秀员工队伍。 该计划将真正为最先进的技术增添科学和工程创新，从而使研究人员能够有竞争力地满足数十亿美元的切削刀具行业对低成本、温度自适应润滑的新兴需求，即使是在复杂的表面上。 这项技术的建立和由此产生的产品可以成为实现环保“绿色”制造的干加工的重要一步。

This project is to design, develop and test a novel temperature adaptive and nano-crystalline dry lubricant (MoS2+ZnO) plus hard phase (TiN) composite coating for cutting tools and advanced machining applications. The nano-crystalline dry lubricant (MoS2+ZnO) particulate coating will be deposited using an innovative electrostatic spray coating (ESC) process. In this project, nano-crystalline ZnO particles, coated with MoS2 via a ball milling process, will be sprayed onto appropriate substrates using ESC. Sequentially, a hard TiN phase will be infiltrated into the nano-crystalline particulate ZnO matrix using a chemical vapor infiltration (CVI) process. The combination of ZnO + MoS2 was selected for investigation because it forms oxythiomolybdates and molybdates, which have exhibited an excellent potential for high temperature applications.The project is a collaboration between the Materials and Manufacturing Research Laboratories (MRL) at the University of Arkansas and Materials Research and Development (MRD) at Valenite-Widia. As a part of the project, students and university faculty will perform part of the research at Valenite. The experience gained in this manner will be of great benefit to the project and will generate an outstanding workforce knowledgeable in the emerging area of nano-technology and advanced manufacturing. This program will truly add scientific and engineering innovations to the state-of-the-art, and thus, will allow the investigators to competitively address the emerging needs of the multi-billion dollar cutting tool industry for low cost, temperature adaptive lubrication, even on complex surfaces. The establishment of this technology and resulting products can be a major step in the realization of dry machining for environmentally conscious "green" manufacturing.