The monotectic alloys have attracted attentions for their unique
possible application for self-lubricating bearing and for their fundamental
understanding of solidification to develop new materials
The organic systems are better for detail investigation due to low melting temperature, wider choice of materials and transparency which provides opportunity for observation during the phase transformation.
The other advantage of organic materials over the inorganic materials is that the properties of organic materials can be enhanced by modifying the molecular structure
via molecular engineering during the synthesis process .
The Binary organic systems have been widely considered as a model system to study the various parameters which predict the properties of materials, and these materials have been found promising for several interesting properties related to electronic and technical applications .
Therefore, with a view to explore more and more binary organic materials and their properties, the present investigation focused on two binary systems biphenyl (BP)
– m-hydroxybenzaldehyde (HB) and 4-bromochlorobenzene (BCB)
– m-aminophenol (AP), respectively. These materials have high
enthalpy of fusion and simulate nonmetallic behavior and both systems
(BP–HB and BCB–AP) would be considered as organic analogs
of nonmetal–nonmetal systems. In this article we report the phase diagram, linear velocity of crystallization, thermochemistry and microstructural investigations of the BP–HB and BCB–AP systems.