Correlation between properties of a solid sample and laser-induced plasma parameters

Chemometrics and theoretical approaches for evaluation of matrix effect in laser ablation and ionization of metal samples

“…Another physical property, Mohs' hardness, shows similar effect as the thermal properties. Labutin et al proposed that heat conduction into the bulk is correlated with solid hardness [51]. Under the irradiance of ns-laser, thermal conduction is significant in laser-solid interaction; hence solid hardness can influence the process and matrix effect, as shown in Fig.…”

A novel specimen-preparing method using epoxy resin as binding material for LIBS analysis of powder samples

“…Moreover, Labutin [23,24] also found that the ablated amount diminished while hardness increased. The amount of the evaporated sample by laser pulse depends greatly on the absorption efficiency of laser pulse energy [25].…”

Correlation between aging grade of T91 steel and spectral characteristics of the laser-induced plasma

“…In other words, the sample characteristics can also be reflected by the matrix effect to a certain extent. There are some reports that using the matrix effect can reflect the characteristics of the sample [21][22][23][24][25][26][27][28][29][30]. Cerrai et al [21] reported that it is possible to establish a relationship between the spectral line intensity of the component and the work-hardening or recrystallization conditions, grain size and the mechanical strain present in the same sample.…”

“…The atomic to ionic ratios are also correlated with the firing temperature of bricks, which has a certain relationship with the hardness [26]. Labutin et al [27,28] analyzed the correlation between the laser-induced plasma parameters and specimen properties; they found that there was a negative correlation between the opto-acoustic signal or crater volume and the hardness of the specimen. Yao et al [29] studied the laser ablation plasma characteristics of 20G steel with different microstructures (pearlite/ferrite and martensite) and found that the differences of the ionic Fe lines was more obvious than atomic Fe lines for two samples.…”