Composite Materials, Geopolymer, Bio Materials, Glass, Ceramics
Bio
Dr. Akm Samsur Rahman is serving as Assistant Professor of Mechanical Engineering at New York City College of Technology, an affiliate of City University of New York. Dr. Rahman’s teaching interest involves computer aided additive and subtractive manufacturing techniques and manufacturing process for the materials that involves geometric and material heterogeneity. His research focuses on the development of processing and fabrication technique of energy efficient geopolymer and glass ceramics that can be tailored into advanced composites and biomedical devices. He is also interested in energy harvesting and storage devices.
Professor Dr. Rahman received his PhD degree in Mechanical Engineering from Colorado State University at Fort Collins in August 2015. Prior to pursing his doctoral studies, he received his MS degree in Mechanical Engineering from Tuskegee University in 2010. Before that, he completed his BS degree in Mechanical Engineering at Bangladesh University of Engineering and Technology( BUET) in 2003. He obtained Professional Engineering license (PE) in 2014.
This course handles the basic concepts of thermal energy conversion and transfer. Dual use of S.I. and English engineering units are employed in order to understand gas laws, fluid processes, first and second laws of thermodynamics, theoretical cycles, internal combustion engines, gas turbines and jet engines, refrigeration cycles and the heat pump. The course covers practical aspects of Heat transfer through radiation, conduction and convection.
This course outlines the Principles of Refrigeration and Air Conditioning. This course covers the principles and theory about refrigeration system, refrigeration cycle and Air-conditioning. Topics include-
Refrigeration Cycle, Psychrometric Chart, Specific and Relative Humidity; Psychrometric Chart; Dew Point, Dry- Bulb and Wet Bulb Temperature; Air Conditioning Processes; Vapor Compression refrigeration; Vapor absorption Refrigeration.
This course provides the fundamentals of Engineering drawing and Computer Aided Design and Drafting. It includes basic drawing concepts, 2-D Geometry, Orthographic and Isometric views of solids and presentations of engineering drawings.
An introduction to atomic and molecular structure of materials and its effect on the physical and Mechanical properties of materials in engineering applications. Structure of materials and their applications. Properties of materials, ferrous and non-ferrous metals, alloys, polymers, ceramics composites, adhesives and lubricants. Heat treatment, cold and hot working, phase diagrams and micro-structure. Experiments are performed on hardness, plastic deformation, annealing, nondestructive testing, metallurgy and computer problem-solving.
The objective of the lab is to develop advanced materials and process for high temperature solutions and Bio-Engineering applications. Using the innovative materials the lab focuses on improving the structural integrity of high temperature composites. Alongside, the lab is focused on evaluating interactions between the material combinations in the human body under various abnormal situation including head trauma.
Currently my Lab is equipped with – Mechanical testing including Compression, tensile, Flexure and DMA. Also my lab is equipped with Electro-spinnning, Hot Press, Climate control Furnace, Optical Microscopy, 3D Printers and CNC. In addition, The lab also have capabilities in and external collaboration with SEM, XRD, DSC, TGA and NMR.
This project concerns the phase separation and crystallization behavior of Lithium Di-silicate glass at a little over stoichiometric Si:Li Ratio (2.33). The objective of this research is to improve the mechanical strength and thermal stability of Lithium- Silicate glass system.
This project aims at extracting Pure and Pozzolanic Silica from Rice Husk and apply into both brittle and ductile polymer. This silica is expected to increase some mechanical and thermal properties of the base polymer.
