Theoretical Study And Preliminary Design Of The Experimental Program For Shock Temperature Non-transparent Of Metallic Materials

The accurate measurement of shock temperature is an important matter of state parameters.Characterization of the impact of the material temperature is very important thermodynamic state parameters of the compressed state under the impact.Measuring the impact of temperature is of great significance to fully determine the equation of state of the material.In addition,the research of the impact of temperature in astrophysics,geophysics,condensed matter physics and other aspects also plays a very important role.With the continuous development of the impact of temperature measurement technology,many scholars have generated strong interest and carried out a series of theoretical and experimental measurements.This paper based on the basic principles of shock temperature measurements,do the research on the measurement of impact temperature of Metallic materials(non-transparent material)under the frame of gray radiation model.On the basis of the previous radiation measuring metal temperature shock experiment,use long pulse KrF excimer laser as a driving source to do the impact compression text on the metal sample to be measured,and the use of thermal radiation thermometry energy,the basic theory of wavelength temperature of temperature shock theoretical calculations.Metallic aluminum and temperature shock theoretical estimates.In order to avoid a gap between the metal sample and the transparent window,Most experimenters use the window coating method as far as possible to achieve the ideal experimental interface.Due to the presence of coated samples and bulk samples physical differences,as well as target structure and production process of different,there is a great impact on the repeatability of the measurement results.This thesis will apply to the three-tier model of bulk samples of the medium,and the wavelength of the radiation thermometry temperature measurement method under theoretical analysis,which is identified as experimental theory of metal shock temper ature measurements.It takes aluminum,iron as bulk samples and as a flyer,Lithium f luoride,sapphire single crystal as the transparent window,and gives specific parameter requirements.Finally,it makes a preliminary design for the experimental measure ment program of metal shock temperature.