Seminar series - Understanding material behaviour for nanoscale precision manufacturing

Zeng, Q. (Participant)

Activity: Participating in or organising an event typesParticipation in workshop, seminar, course

Description

Title of the talk: Understanding material behaviour for nanoscale precision manufacturing
Dated: 24th March 2017
Miniaturization has emerged in a strong way in the 21st Century. Example products include micro-moulds used in biomedical arena, ultra-precision quality finished mirrors in space and defense arena, flexible electronic displays in modern electronic gadgets, solar cells used in renewable energy resources, microholes used for fibre optics, micronozzles for high temperature jets in automotive and aerospace, laser joining and welding of dissimilar materials in various engineering applications. Use of these products in our day-to-day life is becoming ubiquitous as it enables to drive multifarious benefits, such as savings in materials, space and power consumption, improved system’s overall efficiency and ease of transportation.
At the epicenter of miniaturization, lies the role of manufacturing and materials which hinders further developments primarily because of limited understanding on how material behaves at sub-micron scale. With the descend of scale, surface properties start to be dominating compared to the bulk properties of materials and complex interplay of these together contributes to significant manufacturing challenges at the nanoscale.
Today’s industries can sustain themselves based on their ability of being able to process materials efficiently at low cost. However significant challenges exist with the inception of newer and smart materials in healthcare, aerospace, energy and electronics e.g. carbon fibre reinforced plastic (CFRP), carbon based 2D materials, titanium alloys, nanopolymer composite coatings and polymeric materials, organic feedstock materials in bioenergy area and semiconductor materials like silicon and its derivative. Tools such as nanoindentation and nanoscratching, nanoimpact testing and diamond anvil cell exist to probe the nanoscale properties yet, a complete understanding of the newly developing materials or even to synthesize new class of hybrid and composite materials requires more scientific efforts.
One formidable challenge with processing of these smart and novel materials is that the mode of material removal at fine precision level changes from continuous to discrete. An accurate understanding of this phenomena requires an insight into the energetic, structural, dynamic and rheological aspects of the system. Hence understanding the relevant atomic level phenomena is the key to obtain full knowledge of the atomistic mechanism of ultra-precision machining and this can be accomplished efficiently through using atomic simulations which will be the theme of the discussions/talk.

Biosketch of the speaker:
Dr Saurav Goel is a Lecturer in the School of Transport, Aerospace and Manufacturing at Cranfield University. He started his academic journey in 2013 as a Lecturer at Queen’s University of Belfast upon graduating from Heriot-Watt University (HWU), UK in the same year. Prior to his move to the UK, Dr. Goel worked with India’s largest construction company Larsen and Toubro Limited for three years.
He has a distinct academic research record as he has worked progressively over the years by developing the skill sets and knowledge on the deformation mechanics of hard, brittle materials via multiscale simulation methods and cutting-edge experiments. He has authored more than 50 International papers. Recently, he delivered a crash course on the topic “Ultra-precision engineering” at IIT Guwahati, India under the initiative of “GIAN” funded by Ministry of Human Resources, Government of India.
In his early career, his PhD thesis titled “An atomistic investigation on the nanometric cutting mechanism of hard, brittle materials” resulted in 15 International Journal Papers and an award of Postgraduate Research Thesis Prize from the School of Engineering and Physical Sciences of HWU. Based on this, he was selected to present his research poster at the British Parliament in March 2013. Towards end of 2013, he secured an award of John Moyce Lessells Scholarship from the Royal Society of Edinburgh that enabled him to work directly with the world leader in Precision Engineering at Keio University, Japan. This visit was highlighted in the Newsletter of Scotland’s National Academy (Issue No. 42, Spring 2014 edition) and also resulted in four joint publications.
Recently, he has finished Post Graduate certification in higher education and teaching and Chartered Engineer from IMechE and additionally he is member representative on the IET, Tribology team.
Period24 Mar 2017
Event typeSeminar
LocationGlasgow, United Kingdom