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Differential Thermal Analysis

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Differential Thermal Analysis (DTA) is a thermal analysis technique used to measure the temperature difference between a sample and a reference material as they are heated or cooled. This method provides insights into phase transitions, thermal stability, and other thermal properties of materials.
lightbulbAbout this topic
Differential Thermal Analysis (DTA) is a thermal analysis technique used to measure the temperature difference between a sample and a reference material as they are heated or cooled. This method provides insights into phase transitions, thermal stability, and other thermal properties of materials.

Key research themes

1. How can modern dimensional and numerical methods improve the accuracy and applicability of Differential Thermal Analysis in characterizing heat transfer in structural and extended solid elements?

This research area focuses on refining the methods for analyzing heat transfer by leveraging modern dimensional analysis and advanced numerical techniques. It is crucial for accurately predicting thermal behavior in structural elements and extended surfaces such as fins, which are widely used for thermal management in engineering and industrial applications. Improving these analytical methods enhances the precision and efficiency in determining heat transfer coefficients and temperature distributions from DTA data and related experimental measurements.

Key finding: This paper advances the use of modern dimensional analysis (MDA) to extract basic heat transfer parameters like the heat transfer coefficient 'm' from experimentally obtained temperature curves in structural elements... Read more
Key finding: The study applies Differential Transform Method (DTM) combined with Padé approximants to solve nonlinear ordinary differential equations modeling temperature distribution in longitudinal rectangular fins with... Read more
Key finding: This work presents a software application implemented in the Maple computer algebra system to solve non-stationary heat conduction problems in plane plates with convective boundary conditions. It uses analytical solutions... Read more

2. What advances have been made in integrating experimental and numerical approaches for precise measurement of heat flux and thermal properties in high-temperature environments using Differential Thermal Analysis?

This theme investigates the development of sophisticated sensor technologies and numerical modeling techniques to accurately characterize local heat fluxes and thermal properties, especially in challenging environments such as industrial combustors and microscale heat transfer domains. Combining experimental DTA techniques with advanced sensors, inverse modeling, and computational fluid dynamics enhances the resolution and reliability of thermal property determination and heat flux quantification.

Key finding: This study introduces a novel gradient heat flux sensor based on anisotropic thermopower elements (ATE) that leverages the transverse Seebeck effect to measure heat flux in industrial boiler furnaces with high spatial... Read more
Key finding: By applying finite difference numerical methods combined with evolutionary algorithms, this paper solves the dual phase lag model (DPLM) describing microscale heat transfer with relaxation and thermalization delay times. The... Read more
Key finding: The authors develop an analytical inversion method for simultaneously estimating thermal conductivities of three-layer composite materials exposed to steady-state one-dimensional heat transfer. This approach uses three... Read more

3. How are integrated computational and experimental methods advancing the understanding and application of active thermal protection and heat transfer enhancement in building and energy systems?

This theme explores the intersection between thermal analysis, numerical simulation, and applied thermal protection in building envelopes and energy systems. Using computational fluid dynamics (CFD), parametric studies, and experimental validations, researchers improve active thermal management strategies such as thermally activated building structures, energy recovery, and enhanced heat exchangers. These efforts expand the applicability of DTA-driven insights for real-scale energy-efficient systems under dynamic boundary conditions.

Key finding: The paper presents a detailed parametric numerical study analyzing active thermal protection (ATP) systems embedded within building envelopes that utilize renewable energy sources and ground heat storage. By modeling combined... Read more
Key finding: This comprehensive review synthesizes recent advances in numerical modeling and experimental validation of heat transfer and fluid flow phenomena, emphasizing turbulence modeling approaches such as LES and RANS in industrial... Read more
Key finding: Continuing the discourse from previous annual collections, this paper highlights progress in numerical methods and CFD simulations addressing fluid flow and convective heat transfer with complex boundary conditions. It... Read more

All papers in Differential Thermal Analysis

The use of residues, in partial or total substitution of aggregates or binders in concrete, presents interesting possibilities for obtaining eco-efficient concretes. Research has investigated the use of glass residue in Portland cement... more
To propose an optimal perioperative pain management clinical care pathway for interstitial brachytherapy for gynecologic cancer based on our interdepartmental experience. Material and methods: We conducted a retrospective review of 23... more
Al 62 Cu 25.5 Fe 12.5 quasicrystalline films are formed by annealing of successive and simultaneous deposition of the three elements. In situ pyrometrical control during temperature increase of annealing treatment points to a break in the... more
Glass powders, obtained after vitrification and milling of iron-rich Municipal Solid Waste Bottom Ashes (MSWA), were studied towards manufacture of sintered glass-ceramic material. The crystallization kinetics was investigated both in air... more
ABSTRACT In this study, investigation of the Ca-P-O, Ca:Zn-P-O, Ca:Na-P-O, and Ca:Zn:Na-P-O precursor gels prepared using EDTA as complexing agent and slightly different starting materials was performed. For this purpose, thermal... more
... Biochem., 45 (1992) 277. [9] 1. Mayer, JDB Featherstone, R. Nagler, M. Noejovich, D. Deutsch and 1. Gedalia, J. Solid State Chem., 56 (1985) 230. ... [9]. I. Mayer, JDB Featherstone, R. Nagler, M. Noejovich, D. Deutsch and I. Gedalia.... more
Porous mullite and mullite-based composites have been prepared from a chemical processing route starting from a precursor obtained using an aqueous suspension of kaolinite and aluminium hydroxide. This was coprecipitated with kaolinite... more
An interpolymer membrane based on Chitosan and sodium carboxymethylcellulose was formed using the synthetic boundary method in an analytical ultracentrifuge. Membrane formation was monitored by the optical system, enabling quantitative... more
In order to investigate the effect of single doping and co-doping on the enhancement of ionic conductivity in ceria (CeO 2 ), CeO 2 and a few compositions in the system Ce 0.85 Sm 0.15-x Gd x O 1.925 (x=0.00, 0.06, 0.09, and 0.15) were... more
In this article, a consistent study of phase transformations during the crystallization of YBa2Cu3O7-δ compound was carried out using XRD, thermogravimetric and differential thermal analyzes, as well as optical microscopy. When studying... more
A novel mixed technique based on wet-chemistry plus mechanochemical activation has been applied to obtain the Na 1-x Sr x Nb 1-x Ti x O 3 solid solution with x ) 0.1, 0.25, 0.5, 0.75, and 0.9. The wet-chemistry step aims at a better... more
There has been a rapidly growing interest in the use of shape memory alloys (SMAs) in defense and aerospace applications. Shape memory alloys that are well known to exhibit a highly non-linear thermoelastic response involving such unique... more
The research work presented in this paper is focused on the development of a purification process of red mud sulphate leach liquor for the recovery of titanium oxide (TiO(2)) nano-powders in the form of anatase. Initially, titanium was... more
A new glass of Gd 2 O 3 -B 2 O 3 -SiO 2 -Na 2 O-Er 2 O 3 system is prepared and the formation range of the glass is experimentally obtained. Excellent thermal stability of the glass has been demonstrated using differential thermal... more
In this work, we used the solution precipitation route to synthesize Eu 3+ -doped YPO 4 Á nH 2 O nanowires. The structure, morphology, composition, thermal behavior, and photoluminescence of as-synthesized product were characterized by... more
The paper reports on some experimental results obtained from the production of glass-ceramics containing gold tailings powder (GTP). Frits particle sintered technology was used to prepare glass ceramic products. SiO2, CaO, ZnO, BaO and... more
The glass system having (B2O3)0.60(CaO)0.25(ZnO)0.15-x(TiO2)x, where x = 0.0, 0.025, 0.05,..., 0.15, was investigated using infrared spectroscopy, differential thermal analysis, density, magnetic susceptibility and dc electrical... more
This paper examines the ion-exchange properties of synthetic zeolite Na-P0, which was produced from perlite-waste fines and has a SiO2:A1203 ratio of 4.45:1 and a cation-exchange capacity (CEC) of 3.95 meq g ~. Although equilibrium is... more
A simple relationship has been derived to predict thermal stability of CHNO polynitro arenes on the basis of onsets of thermal decomposition, which can be obtained by means of non-isothermal differential thermal analysis (DTA). The model... more
Textured yarns transform continuous-filament synthetics into bulky, elastic, and soft yarns suitable for apparel, home textiles, and technical applications. The two dominant texturing techniquesfalse-twist draw texturing (DTY) and air-jet... more
The high worldwide demand for amorphous precipitated silica (APS) materials, millions of tons worth billions of dollars, makes it worthwhile to further expand the techniques for synthesizing new, cheap, and environmentally friendly... more
According to the data of differential thermal, X-ray phase analyzes, as well as measurements of conductivity and pycnometric density, phase equilibriums were studied and phasing diagrams of TlInS2 -CuInS2 and TlGaSe2 -CuGaSe2 systems were... more
Biogenic iron oxides could find application in catalysis but their structure and composition should be well characterized. The content of organic rests due to their origin should also be controlled. Samples of natural biomass and biomass... more
The study is focused on the synthesis of LaMO3 (M = Co, Fe, Mn) perovskite materials using combination of precipitation of precursors and mechanical milling at room temperature. Physicochemical properties of products at each step of... more
The two dimensional layered polymer compounds, M(PM)2Pd(CN)4 {where M = Mn, Zn or Cd; PM = pyrimidine} have been prepared for the first time and their FT-IR (4000-400 cm -1 ) and Raman (4000-50 cm -1 ) spectra are reported. The compounds... more
Meat and bone meal (MBM) is the alternative fuel with good calorific value used in cement production. The main problem with MBM combustion in a cement kiln is the high content of P 2 O 5 , which incorporates in clinker phases, influencing... more
Na0.5Li0.5Zr2(PO4)3has been synthesized by solid state reaction and characterized by thermogravimetry/ differential thermal analyses (TGA/DTA) in the temperature range 300 - 1573 K. X-ray diffraction measure- ments have been carried out... more
The purpose of this study is the development and investigation of gas-generating composition based on potassium chlorate for the destruction of a stone. The thermodynamic analysis of the energy characteristics of the studied gasgenerating... more
The crystal structure and the stability of the two ternary compounds Ba 4 CaCu 3 O 8+ and Ba 6 CaCu 3 O 10+ have been investigated by means of X-ray diffraction, differential thermal analysis and thermogravimetry analysis. We find that... more
The characteristic temperatures such as the glass transition temperature ( T g ), the onset temperature of crystallization ( T c ) and the melting temperatures, ( T m ) have been determined for glasses belonging to the Ge x Se 100 −  x... more
The synthesis of vanadyl phosphate by reaction of an alcoholic solution of V 2 O 5 and o -H 3 PO 4 has been studied. The solids obtained were investigated by various physico-chemical techniques as in situ X-ray diffraction (XRD),... more
The original crystalline structure of clay minerals can be altered in a controlled way, through acid or thermal treatments, resulting then in suitable products to be used as catalysts. This paper aims to characterize the red smectite... more
A natural bentonite sample from Argentina was activated by sulfuric acid in different concentrations (20 and 40 wt%) and different contact time (120 and 210 min), at the same temperature (90 °C) . The ratio of the mass of clay to the... more
In this study, the effect of witherite (BaCO3) addition on the sintering of lignite coal fly ash taken from the Seyitomer power plant of Kutahya/Turkey was examined at temperatures of 1100, 1150 and 1200 C in air atmosphere. Bloating of... more
The infrared emissivity of glassy carbon, stainless steel, and stainless steel with a selective coating of NiNiO has been determined using a thermal-wave resonant cavity heated with a modulated laser beam. This is achieved performing a... more
In this work, the Stokes and anti-Stokes luminescence (upconversion) of erbium in powders of yttrium-aluminum garnet with various concentrations of erbium, as well as co-doped with erbium and ytterbium, synthesized by the sol-gel method... more
Mengen (Bolu) basin extending northeast-southwest contains Neogene limestone, claystone, marl, lignite, and oil shale sequences. Oil shale deposit has been accumulated in shallow restricted back-platform basins during the Middle Eocene.... more
The thermal behavior of ammonium molybdates, i.e., (NH4)6Mo7O24·4H2O (1) and (NH4)2MoO4 (2), was studied in inert (N2) and oxidizing (air) atmospheres by TG/DTA-MS, XRD, FTIR and SEM. The thermal decomposition sequence of 2 had... more
A method for obtaining nanosized LaCoO3 crystals from calcination of a precursor powder synthesized by a hydrothermal route is reported. Details concerning the evolution of the microstructure and formation mechanism of the perovskite... more
In this paper the effect of the addition of Li2O on the crystallization behavior of PbO-B2O3-ZnO glass was investigated by the differential thermal analysis (DTA) and X-ray powder diffraction (XRPD) methods. The crystallization ability,... more
The selected lanthanum-strontium-borate glasses were prepared by a conventional melt-quenching technique. The compositions of the investigated glasses were chosen to be: 5.7, 9.5, 14.3, 19.1 mol % for La2O3, 22.9, 19.1, 14.3, 9.5 for mol... more
The results of research on the conditions for obtaining model glass-ceramic enamels, derived from the basic Li 2 O-Na 2 O-Al 2 O 3 -TiO 2 -SiO 2 system, by varying the initial composition and thermal treatment conditions, are presented in... more
Synthetic utility of sulfated and borate zirconia for the synthesis of a,a?-bis(substituted benzylidine)cycloalkanones using microwave irradiation in solvent-free conditions has been investigated. Both sulfated zirconia (SO 4 2( /ZrO 2 )... more
The constitution of the ternary system Ni-Si-Ti is investigated over the entire composition range using x-ray diffraction (XRD), energy dispersive x-ray spectroscopy (EDS), differential thermal analysis (DTA) and metallography. The solid... more
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