Results 91 to 100 of about 32,008 (307)

Simultaneous Identification of Thermal Diffusivity, Thickness, and Heating Center Point Based on Surface Temperature Variation Excited by Laser-Spot Heating

Proceedings
An infrared thermographic technique was developed for identifying the thermal diffusivity from temperature variation data of the specimen surface. Laser-spot heating is applied to the specimen surface for a certain period, and then, temperature variation
Shun Tomizawa, Yu Kurokawa, Hirotsugu Inoue   +2 more
doaj   +1 more source

Combined Process‐ and Phase‐Field‐Simulation to Predict the Microstructure of Single‐Crystal Ni‐Based Superalloys

Advanced Engineering Materials, EarlyView.
A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm, André B. Baldissera, Rainer Völkl, Uwe Glatzel   +3 more
wiley   +1 more source

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

Advanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold, Dylan Jennings, Robert Vaßen   +2 more
wiley   +1 more source

Intercomparison of thermal diffusivity measurements on CuCrZr and PMMA

, 2013
The results of an inter laboratory comparison of thermal diffusivity measurements on two different materials, namely a copper alloy (CuCrZr) and a polymer (PMMA), are presented here.
Jaenicke-Rössler, Klaus, Pintsuk, Gerald, Hemberger, Frank, Rhode, Magnus, Rohde, Magnus, Hammerschmidt, Ulf, Pfaff, Ewald, Häusler, Tobias, Blumm, Jürgen, Haeusler, Tobias, Bauer, Thomas, Blumm, Juergen, Hohenauer, Wolfgang, Pintsuk, Gerhard, Fend, Thomas, Kaschnitz, Erhard, Pfaff, Ewald M.   +16 more
core  

Infrared Thermal Imaging-Based Thermal Diffusivity Measurement Using Angstrom Method [PDF]

, 2021
Characterizing the thermal diffusivity of materials is a vital step in the creation of new polymer nanocomposites. Determining the in-plane thermal diffusivity as compared to the through-plane thermal diffusivity may show the effectiveness of a material ...
Woolery, Bradley
core  

Experimental study on thermal properties of red clay in Guangxi province and its influence factors

Yantu gongcheng xuebao, 2018
By analyzing their mineral compositions, the thermo-physical properties of 4 kinds of red clay in Guangxi Province are studied from the perspective of soil mechanics. The relationship between the thermal parameters and their impact factors also discussed.
ZENG Zhao-tian 1, 2, ZHAO Yan-lin 1, 2, LÜ Hai-bo 1,2, XU Yun-shan 1, LI Qi-lin 1, CAI Yu-fen 1
doaj   +1 more source

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

Advanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu, Xun Zhang, Jack M. Donoghue, Albert D. Smith, Rahul Unnikrishnan, Rhys Thomas, Vahid Nekouie, Jie Luo, Dongchen Hu, Michael Preuss, Philip J. Withers   +10 more
wiley   +1 more source

Low temperature thermal diffusivity of LiKSO4 obtained using the photoacoustic phase lag method

Materials Research, 1999
This paper describes the determination of the thermal diffusivity of LiKSO4 crystals using the photoacoustic phase lag method, in the 77 K to 300 K temperature interval. This method is quite simple and fast and when it is coupled to a specially designed
Jorge M.P.P.M., Vieira M.M.F., Mendes Filho J., Oliveira A.C., Vieira Jr. N.D., Morato S.P.   +5 more
doaj  

Performance Analysis of Abradable Coating Systems for Aircraft Gas Turbines

Advanced Engineering Materials, EarlyView.
Three CoNiCrAlY/YSZ/MgAl2O4 abradable liner configurations on a nickel‐superalloy are evaluated by thermal‐gradient cycling and incursion tests. Laser ablation of the bondcoat and/or Y2O3‐stabilized ZrO2 (YSZ) intermediate layer increases mechanical interlocking and bonding for thick topcoats.
Hanna Heyl, Daniel Emil Mack, Martin Tandler, Susanne Schrüfer, Robert Vaßen   +4 more
wiley   +1 more source