Analysis of Gruneisen Parameter for Carbides and Bromides in Cast Iron

In this current study, we delve into a comparative analysis of the Gruneisen parameter within the context of carbides and bromides embedded in cast iron under high compressive conditions. Our investigation is accompanied by a meticulous evaluation, wherein we juxtapose the outcomes with those derived from four distinct equations of states (EOSs): namely the M-L Jones EOS, Brennan–Stacey EOS, Birch–Murnaghan EOS, and Vinet–Rydberg EOS. Across the compression spectrum ranging from 1 to 0.91, our study unravels intriguing patterns. Notably, the modified Lenard Jones EOS emerges as the most fitting candidate for encapsulating the thermo elastic characteristics of carbides and bromides within the cast iron matrix. This assertion is substantiated by a distinctive observation: The modified Lenard Jones EOS yields a minimal slope in the graph depicting the relationship between the Gruneisen parameter and the volume compression ratio. In essence, our work sheds light on a compelling EOS choice, furthering our understanding of these materials’ intricate behavior under extreme compression.