Advances in science and technology of Mn+1AXn phases by It-Meng Low

By It-Meng Low

MAX levels are a brand new type of fabrics that show a different mixture of features of either ceramics and metals.  MAX stages are nano-layered ceramics with the overall formulation Mn+1AXn where "M" is an early transition steel, "A" is a group-A point and "X" is both carbon or nitrogen.  Similiar to ceramics, they own low density, low thermal growth coefficient, excessive modulus and excessive power, and solid extreme temperature oxidation resistance.  Like metals, they're strong electric and thermal conductors, with ease machinable, tolerant to break and proof against thermal shock.I.M. Low has compiled 15 peer-reviewed chapters, written through a number one study of overseas acceptance on MAX levels.   The members talk about synthesis, characterisation, modeling, microstructures, homes, ab-initio calculations and functions of MAS levels and pursuits the ongoing learn of complicated metals and ceramics.

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His thesis topic was MAX phase carbide in the Ti–Si–C and related Ti–Si–Al–C solid solution material systems. During 2007–2009, he worked in Tuebingen University, Germany as a Humboldt Researcher with the research about the hydrothermal oxidation behavior of Ti3SiC2 Published by Woodhead Publishing Limited 2012 xliii Advances in science and technology of Mn+1AXn phases and Ti3AlC2. From 2009 to 2011, he was a NIMS postdoctoral researcher in National Institute for Materials Science (NIMS), Japan and performed the study of high-pressure spark plasma sintering (SPS) of advanced transparent oxide ceramics with nano-size grains.

69). It seemed that SHS fabricated Ti2AlC belongs to a carbon-deficiency compound. Although PSHS has many advantages, it also has drawbacks. Owing to a lack of external heating, the dwell time is typically short. Hence the relative density of the products is usually smaller than 98 per cent. Slip casting (SC) SC is widely used for the fabrication of components with complex shapes. Compared with the conventional dry powder processing method, SC can greatly reduce machining workload. Sun et al. [63] studied the feasibility of using a SC method to fabricate bulk Ti3AlC2.

With the volume fraction of the Ti2AlN particles increasing from 20% to 50%, the wear loss of the Ti2AlN/TiAl composites decreases a little. The wear resistance of Ti2AlN/TiAl composites is a little higher than that of the TiAl alloy at high temperature, the cracking along the phase boundaries and the adhesive spalling are the wear modes of Ti2AlN/TiAl composites. Chapter 6: A model system, Al2O3-Ti3SiC2 composite, is described in this chapter which demonstrates that the toughness of ceramic can also be enhanced by using the reinforcement with weak internal layers of Ti3SiC2.

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