Characterization techniques to predict mechanical behaviour of green ceramic bodies fabricated by ceramic microstereolithography

International Conference on Advances in Materials and Manufacturing Applications 2017

Adake, Chandrashekhar V.^1 ; Bhargava, Parag^2 ; Gandhi, Prasanna^3

KLE Dr. M S Sheshgiri College of Engineering and Technology, Belagavi, India^1

Metallurgical Engineering and Materials Sciences Department, Indian Institute of Technology Bombay, Mumbai, India^2

Mechanical Engineering Department, Indian Institute of Technology Bombay, Mumbai, India^3

关键词: Characterization techniques;    Characterization tools;    Double-bond conversions;    Extent of cross-linking;    Fabrication Technologies;    FT-IR characterization;    Microelectromechanical (MEMS);    Microstereolithography;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/310/1/012078/pdf
DOI  :  10.1088/1757-899X/310/1/012078

来源: IOP

【 摘 要 】

Ceramic microstereolithography (CMSL) has emerged as solid free form (SFF) fabrication technology in which complex ceramic parts are fabricated from ceramic suspensions which are formulated by dispersing ceramic particles in UV curable resins. Ceramic parts are fabricated by exposing ceramic suspension to computer controlled UV light which polymerizes resin to polymer and this polymer forms rigid network around ceramic particles. A 3-dimensional part is created by piling cured layers one over the other. These ceramic parts are used to build microelectromechanical (MEMS) devices after thermal treatment. In many cases green ceramic parts can be directly utilized to build MEMS devices. Hence characterization of these parts is essential in terms of their mechanical behaviour prior to their use in MEMS devices. Mechanical behaviour of these green ceramic parts depends on cross link density which in turn depends on chemical structure of monomer, concentrations of photoinitiator and UV energy dose. Mechanical behaviour can be determined with the aid of nanoindentation. And extent of crosslinking can be verified with the aid of DSC. FTIR characterization is used to analyse (-C=C-) double bond conversion. This paper explains characterization tools to predict the mechanical behaviour of green ceramic bodies fabricated in CMSL.