Film Mo sub(0.95)Re sub(0.05)S sub(2) as a strain-sensing element

The paper reports on the strain sensitivity of molybdenum-rhenium disulfide films and their resistance temperature characteristics. The polycrystalline sample of composition Mo sub(0.95)Re sub(0.05)S sub(2) was synthesized by direct high temperature reaction of elements with stoichiometric ratio. Thin films were prepared using two methods - spray and vacuum filtration of colloidal dispersions of Mo sub(0.95)Re sub(0.05)S sub(2). The strain gauge factors, of 12 and 20, respectively, were observed depending on the preparation method. The samples were examined for endurance and the strain gauge factors remained without significant degradation during 10 super(5) load cycles at least. In order to estimate effective activation energies the resistance temperature characteristics have been measured to be 150 meV for the samples sprayed and 200 meV for those filtered.