Results 31 to 40 of about 80,518 (317)

The heat of combustion of beryllium in fluorine

Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry, 1969
An experimental determination of the energies of combustion in fluorine of polytetrafluoroethylene film and powder and of mixtures of beryllium with polytetrafluoroethylene gives for reaction (1) Δ H 25 C ° = - 1022.22 kJ mol-1 (-244.32 kcal mol-1) with an overall precision of 0.96 kJ mol-1 (0.23 kcal mol-1) at the 95 percent confidence limits.
K L, Churney, G T, Armstrong
openaire   +2 more sources

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Heat of combustion and heat of formation of aluminum carbide

Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry, 1964
The heat of combustion of aluminum carbide (A14C3) in oxygen was measured by means of bomb calorimetry. The solid product of the combustion consisted of alpha aluminum oxide and another crystalline form of alumina, which was characterized as delta alumina. The heats of combustion were corrected for the formation of the delta aluminum oxide. The results,
R C, King, G T, Armstrong
openaire   +2 more sources

The combustion and the thermal-energetic behavior of an oil-fired condensing boiler [PDF]

, 2013
The purpose of this Master’s Thesis is to analyze an oil-fired condensing boiler describing the aspects concerning the combustion, condensation latent heat recovery from the combustion products and the heat transfer phenomena occurring in the device ...
Cattarinussi, Cristian
core  

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

The effects of heat exchange and fluid production on the ignition of a porous solid

, 2008
In this paper we study a system of nonlinear parabolic equations representing the evolution of small perturbations in a modeldescribing the combustion of a porous solid.
McIntosh, A.C., Brindley, J., Shah, Akeel A., McIntosh, A. C., Rademacher, Jens, Rademacher, J.D.M. (Jens), Shah, A.A., McIntosh, A., Rademacher, J.   +8 more
core   +1 more source

Natural Bone‐Derived Ceramic Scaffolds Functionalized with Chitosan‐Gold, Chitosan‐Magnesium, and Chitosan‐Zinc for Enhanced Antibacterial Activity

Advanced Engineering Materials, EarlyView.
This study reports the development of antibacterial ceramic scaffolds derived from natural bovine bone. The bones were processed through sequential boiling and hydrogen peroxide treatment to remove organic matter, producing porous, mineral‐rich scaffolds.
Mohamad Hassan Taherian, Anh Thi Le, Anh Thi Van Le, Dung My Thi Dang, Tin Chanh Duc Doan, Chien Mau Dang, Martin Bolduc   +6 more
wiley   +1 more source

Reduce deposits on heat exchange surfaces when burning inferior coal [PDF]

E3S Web of Conferences, 2019
The phenomenon of soiling of heat exchange surfaces occurs in all types of combustion plants. The deposit of solids (combustion gases particles) worsens heat transfer by reducing combustion efficiency, increasing fuel consumption and pollution.
Bică Marin, Stoian Andrei, Tutunea Dragoş, Călbureanu Mădălina   +3 more
doaj   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

Performance of Corn Cob Combustion in a Low-Temperature Fluidized Bed

Energies
This study investigates the combustion of agricultural biomass rich in alkali elements in the fluidized bed. The experiments were performed with smashed corn cob in a 500 kW fluidized bed combustor which was designed for work under low bed temperatures ...
Rolandas Paulauskas, Marius Praspaliauskas, Ignas Ambrazevičius, Kęstutis Zakarauskas, Egidijus Lemanas, Justas Eimontas, Nerijus Striūgas   +6 more
doaj   +1 more source