Amber from a Lower Cretaceous outcrop at San Just, located in the Eastern Iberian Peninsula (Escucha Formation, Maestrat Basin), was investigated to evaluate its physico-chemical properties. Thermogravimetric (TG) and Differential Thermogravimetric (DTG) analyses, infra-red spectroscopy, elemental and C-isotope analyses were performed. Physico-chemical differences between the internal light nuc...

Abstract Heritage buildings always pose challenges due to experiencing high temperatures and pressure over time. Sandstone is one of the common sedimentary rock types used for these buildings. Therefore, it very important understand microstructural variations rocks associated with constructions along mechanical variations. In this study, alteration selected sandstones investigated after heated ...

Abstract Non-isothermal reaction mechanism and kinetic analysis for the synthesis of monoclinic lithium zirconate (m-Li 2 ZrO 3 ) were investigated by processing TG-DTA, along with XRD, DLS, HRTEM. For this purpose, solid-state Li CO was carried out TG-DTA at different heating rates (10, 20, 30 °C/min) from room temperature to 1100 °C. The thermal data used calculate parameters two types isocon...

ABSTRACT. Nonlinear optical (NLO) active guanidinium trichloroacetate (GTCA) crystal was synthesised and grown by using slow evaporation solution growth technique from mixed solvent. The characterized single X-ray diffraction (SXRD) powder (PXRD) analysis. Fourier transform infrared (FTIR) spectrum of GTCA recorded the frequency assignments various functional groups were compared with theoretic...

Abstract Aiming at biomedical applications, the present work developed a new bio‐nanocomposite fibrous mat based on natural rubber (NR) reinforced with 45S5 bioglass particles (BG) and cellulose nanowhiskers (CNW), which reveals excellent mechanical properties, good biocompatibility bioactivity properties. Analyses of specimens were conducted by means morphological observations (SEM) thermal an...

The thermogravimetric analysis during the hydrotreatment in dynamic regime of organic matter for Tarfayas oil shale different layers and layer M Timahdit was object this study, several results obtained allowed us to describe energetic non-estimable value that it is extract or use as fuel. By processing curves TG, DTG=f(Tmax) their surfaces we were able show concentration mineral climate sedimen...

This paper reports on the synthesis of Cannabis indica fiber-reinforced composites using Urea-Resorcinol-Formaldehyde (URF) as a novel matrix through compression molding technique. The polycondensation between urea, resorcinol, and formaldehyde in different molar ratios was applied to the synthesis of the URF polymer matrix. A thermosetting matrix based composite, reinforced with lignocellulose...

Graft copolymerization of acryl-amide onto guar-gum has been carried out in the presence of potassium per sulphate as a redox initiator. The prepared graft copolymer was characterized by various techniques such as FT-IR, SEMEDX and TGA-DTA-DTG. Activated charcoal was also studied as the adsorbent in the present study to evaluate their adsorption capacity for Cr (Vl) and compared it with indigen...

To study the applicability of basalt fiber through various experimental works in thermal and chemical environments, lining heat-insulating materials basis on Aydarkul deposit were compared discussed. The identification phase pert structures used X-ray diffraction analysis. showed better strength retention than glass at relatively high temperature. article studies endothermic effects thermolysis...