Sample Perspex window used by Ian Gilchrist in researching high pressure windows
Sample Perspex window used by Ian Gilchrist in researching high pressure windows for Benthic pressure trap. Conical window in a lubricated mount which has been pressurised once to 172 MPa. A fracture has taken place, by cleavage across a semi spherical surface close to the low pressure face. A transition in the form of a fracture takes place at pressures around 210 MPa.