Results 61 to 70 of about 526,420 (390)

Electrode carrying wire for GTAW welding [PDF]

, 1990
A welding torch for gas tungsten arc welding apparatus has a hollow tungsten electrode including a ceramic liner and forms the filler metal wire guide.
Dyer, Gerald E., Morgan, Gene E.
core   +1 more source

Intrazeolite phototopotaxy. EXAFS analysis of precursor 8{W(CO)6}-Na56Y and photooxidation products 16(WO3)-Na56Y and 28(WO3)-Na56Y [PDF]

, 1991
The intrazeolite photooxidation chemistry of alpha-cage encapsulated hexacarbonyltungsten(0) in Na56Y with O2, denoted n{W(CO)6}-Na56Y/O2/hv, which has previously been shown to provide a novel synthetic pathway to alpha-cage located tungsten(VI) oxide ...
Bein, Thomas, Möller, Karin, Ozin, Geoffrey A., Ozkar, Saim   +3 more
core   +1 more source

TUNGSTEN (VOLFRAM)

, 2023
Volfram olarak da adlandırılan tungsten (W), çeliklerde sertliği ve dayanıklılığı arttırmada ve lamba filamanlarında kullanılan, periyodik tabloda 6. periyot 6B grubunda yer alan son derecede güçlü refrakter metal olan bir elementtir. Tungsten, olağandışı özelliklerinden dolayı elektronik haberleşme, havacılık ve uzay bilimi, malzeme ve kimya ...
openaire   +2 more sources

Quality Enhancement of Laser Powder‐Bed Fusion Parts by Acoustically Assisted Additive Manufacturing by Laser Powder‐Bed Fusion and its Application to Lattice Structures

Advanced Engineering Materials, EarlyView.
Additive manufacturing technologies like laser powder‐bed fusion offer great design freedom and individualization of products down to a batch size of one. However, parts fabricated with this technology suffer from poor quality. Acoustic assistance during the build process can minimize these drawbacks.
Oliver Maurer, Dirk Bähre
wiley   +1 more source

Analysis of Shielding Performance of Radiation-Shielding Materials According to Particle Size and Clustering Effects

Applied Sciences, 2021
In the field of medical radiation shielding, there is an extensive body of research on process technologies for ecofriendly shielding materials that could replace lead.
Seon-Chil Kim
doaj   +1 more source

Optical properties of tungsten thin films perforated with a bidimensional array of subwavelength holes [PDF]

, 2003
We present a theorical investigation of the optical transmission of a dielectric grating carved in a tungsten layer. For appropriate wavelengths tungsten shows indeed a dielectric behaviour.
A. Hessel, A. Krishnan, D.E. Grupp, H.F. Ghaemi, J.A. Porto, J.P. Vigneron, Jean-Pol Vigneron, Lord Rayleigh, M. Sarrazin, Michaël Sarrazin, R.W. Wood, S. Fan, T. Thio, T.W. Ebbesen, U. Schröter, V.U. Fano   +15 more
core   +2 more sources

New Developments in the Field of Production and Application of Multi‐Material Wire Arc Additive Manufacturing Components: A Review

Advanced Engineering Materials, EarlyView.
The utilization of direct energy deposition (DED)‐arc additive manufacturing processes in industrial applications is increasing, and these processes have the potential for multi‐material applications. This work provides a overview of the state of research in DED‐arc made functional graded structures, to establish a link to potential industrial ...
Kai Treutler, Volker Wesling
wiley   +1 more source

Heterogenous microstructure and texture evolution of K-doped tungsten thick plate during hot-rolling processing

Nuclear Materials and Energy
The fabrication and processing of large bulk materials such as potassium (K)-doped tungsten pose significant technical challenges in terms of sintering and forming processes.
Ping Ren, Qinglin Liu, Jiupeng Song, Binyou Yan, Mengxia Liang, Shaowei Dai, Fan Feng, Youyun Lian, Jianbao Wang, Xiang Liu   +9 more
doaj   +1 more source

Grain growth inhibitor for porous tungsten materials [PDF]

, 1968
Boron, either uncombined or combined with nitrogen or carbon added to tungsten powder prior to processing, effectively inhibits grain growth.
Todd, H. H.
core   +1 more source

Study of the Effect of Process Parameters and Heat Treatment on the Formation and Evolution of Directed Energy Deposition of IN718‐CuCrZr Interface

Advanced Engineering Materials, EarlyView.
Bimetallic structures of Inconel 718 and CuCrZr are fabricated using the laser powder directed energy deposition method. The study reveals a strong dependence of interface characteristics such as width and interfusion on processing and heat treatment strategies.
Hamidreza Javidrad, Bahattin Koc
wiley   +1 more source