Abstract The complex crystallization behavior of the Zr 40 Ti 15 Cu 10 Ni Be 25 bulk metallic glass (BMG) produced by suction-casting method was studied with non-isothermal DSC measurements heating rate from 5 to K/min. Three exothermic phenomena were observed for investigated material. novel evaluation procedure qualitative and quantitative analysis intricate kinetics Zr-based BMGs is proposed...

Abstract The purpose of this study is to critically analyze different methods calculation activation energy relaxation in sucrose-water system from differential scanning calorimetry data. We consider the use thermal cycles for calculations together with Moynihan and Kissinger equations. effect two glass transition temperature determination (half-step inflection point) on values. Along experimen...

In the current study, plain and lignin loaded with Zeolite Y, hydrogen was decomposed in a pyrolysis chamber. The reaction parameters were optimized 390 °C, 3% catalyst time of 40 min observed as most suitable conditions for better oil yield. bio-oil collected from catalyzed non-catalyzed pyrolytic reactions analyzed by gas chromatography mass spectrometry (GCMS). Catalytic resulted production ...

Abstract The effects of particle size on the apparent kinetics carbothermal reduction process phosphate rock were studied by non-isothermal thermogravimetric analyses. Phosphate various was reacted with coke and silica under high purity argon atmosphere. kinetic model parameters reaction different sizes derived combination model-free (Flynn–Wall–Ozawa, Kissinger–Akahira–Sunose, Tang, Starink) m...

In this study, the crystallization behavior of melt-spun Al87Ni10La3 amorphous phase was investigated by using X-ray diffraction and non-isothermal differential thermal analysis techniques. The results demonstrated that the amorphous phase exhibited two-stage crystallization on heating, i.e., at first step the amorphous phase transforms into α-Al phase and at second step Al11La3 and Al3Ni inter...