Results 71 to 80 of about 352,526 (370)
A Novel On-chip Three-dimensional Micromachined Calorimeter with Fully Enclosed and Suspended Thin-film Chamber for Thermal Characterization of Liquid Samples [PDF]
, 2014 A microfabricated calorimeter (μ-calorimeter) with an enclosed reaction chamber is presented. The 3D micromachined reaction chamber is capable of analyzing liquid samples with volume of 200 nl. The thin film low-stress silicon nitride membrane is used to
Arpaci V. S. +4 more
core +2 more sources
Advanced Engineering Materials, EarlyView.This study aims to establish a link between the dielectric properties of polyamide 12 (PA12) and its thermal and rheological properties using dielectric analysis (DEA). A standardized methodology is introduced to determine melting and crystallization temperatures.
Benedikt Burchard +2 more
wiley +1 more source
Differential scanning calorimetry of chicken erythrocyte nuclei [PDF]
European Journal of Biochemistry, 1992 Investigation of structural features of native chromatin requires the use of intact nuclei, a turbid material which cannot be analyzed by optical methods. Differential scanning calorimetry does not require optically clear samples and has been proved by a number of authors to be a powerful tool in this field of study.
GIARTOSIO, Anna +6 more
openaire +3 more sources
Advanced Engineering Materials, EarlyView.This work reveals the phase composition and quantitative morphology analysis of precipitation‐hardened Fe32Cu12Ni11Ti16Al29 complex‐concentrated alloy. The precipitates are shown to have a high coherency. Morphology transition between sphere, cuboidal, and elongated morphology is observed. Finally, the overaging behavior is captured using microhardness.
Rostyslav Nizinkovskyi +4 more
wiley +1 more source
Crystallization kinetics of equimolar liquid crystalline mixture and its components [PDF]
Applied Sciences 2024, 14(24), 11701The new equimolar mixture comprises liquid crystalline compounds MHPOBC and partially fluorinated 3F2HPhF6. The phase sequence of the mixture is determined by differential scanning calorimetry, polarizing optical microscopy, X-ray diffraction, and broadband dielectric spectroscopy.
arxiv +1 more source
Evolution of structural (α) relaxation-time anomalies in GexSe1-x Chalcogenide glasses [PDF]
Materials Research Express 2, 055201 (2015), 2015 We examine enthalpy relaxation across the chalcogenide glass series GexSe1-x, prepared over close-by compositions using conventional melt-quenching technique. We estimate the timescale {\tau}(Tg) characterizing enthalpic relaxation near the kinetic glass transition temperature, using the non-reversing heat-flow data obtained from MDSC (modulated ...
arxiv +1 more source
, 1979 Aromatic crystalline polyimides are disclosed that are synthesized from polyamide-acid and when heated to 200 C to 300 C become cyclized to afford an opaque polymer.
St.clair, A. K., St.clair, T. L.
core +1 more source
Ice Premelting during Differential Scanning Calorimetry [PDF]
Biophysical Journal, 1999 Premelting at the surface of ice crystals is caused by factors such as temperature, radius of curvature, and solute composition. When polycrystalline ice samples are warmed from well below the equilibrium melting point, surface melting may begin at temperatures as low as -15 degrees C.
Jonathan W. Arthur +2 more
openaire +3 more sources
Toughness of Confined Auxetic Foams
Advanced Engineering Materials, EarlyView.Auxetic (negative Poisson's ratio) materials offer benefits such as impact mitigation, thermal insulation, vibration damping, and reduced shear strain, although their fracture mechanics are largely unexplored. This study investigates damage initiation and propagation in confined re‐entrant auxetic foams from polyurethane via experimental ...
Adrianos E. F. Athanasiadis +3 more
wiley +1 more source
Entropy production in temperature modulated differential scanning calorimetry [PDF]
Journal of Thermal Analysis and Calorimetry (2008) 1, 2008 The non-equilibrium process due to irreversible heat exchanges occurring during a temperature modulated differential scanning calorimetry experiment is investigated in detail. This enables us to define an experimental frequency dependent complex heat capacity from this calorimetric method. The physical meaning of this dynamic heat capacity is discussed.
arxiv