sic for laser metal deposition function

Additive Manufacturing by Direct Metal Deposition

functional metal parts directly from CAD data by depositing metal powders pixel-by-pixel using laser melting and a patented closed-loop control system to maintain dimensional accu-racy and material integrity. With the feedback system, six-axis deposition, and

(PDF) Laser composite surfacing of stainless steel with …

ExperimentalLaser composite surfacing of AISI 304 stainless steel with SiC was carried out by pre-deposition of Fe + SiC powders (at a ratio of 85:15 and thickness of 100 µm) on substrate surface and subsequently, melting it using a 2 kW continuous wave CO

PLD Targets - PVD Products

PLD. Targets. PVD Products provides pulsed laser deposition (PLD) targets for a wide range of appliions from ferromagnetic, complex oxides, and superconducting films. Metal targets are offered in various purity levels to suit your specific requirements, with the minimum purity of 99.9% up to 99.99% for some metals like aluminum, copper, and

SiCx Layers Prepared by Hybrid Laser Deposition and …

2009/10/28· The laser was used for deposition of carbon from graphite target. Laser repetition rate of 4–5 Hz and energy density of 4 (or 9) J · cm −2 were used. The DC magnetron simultaneously sputtered Si species. 9 Magnetron power was held at 100–200 W.

Additively Manufactured Al/SiC Cylindrical Structures by …

Preliminary characterization of the microstructure of Al/SiCp composites prepared by Laser Metal Deposition (LMD) was analyzed, and the microhardness and wear behavior of the materials manufactured have been evaluated. It has been determined that the

Additively Manufactured Al/SiC Cylindrical Structures by …

adshelp[at]cfa.harvard.edu The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86A

Additively Manufactured Al/SiC Cylindrical Structures by …

Preliminary characterization of the microstructure of Al/SiCp composites prepared by Laser Metal Deposition (LMD) was analyzed, and the microhardness and wear behavior of the materials manufactured have been evaluated. It has been determined that the

Fabriion of Metal Matrix Composite by Laser Metal …

2019/10/31· Laser Metal Deposition (LMD) offers new perspectives for the fabriion of metal matrix nanocomposites (MMnCs). Current methods to produce MMnCs by LMD systematically involve the premixing of the nanopowders and the micropowders or require in-situ strategies, thereby restricting the possibilities to adjust the nature, content and loion of the nano-reinforcement during printing.

Material-structure-performance integrated laser-metal …

2021/5/27· At present, the two main representative egories for laser-based AM processes for metallic components are laser-directed energy deposition (LDED) and laser powder bed fusion (LPBF), according to the standard terminology for AM technologies established by

Temperature field and residual stress distribution for …

2018/6/13· Laser metal deposition (LMD) process has been widely used in many industrial appliions such as automotive, defense, aerospace, and so on. Modeling has to address physical phenomena like laser-powder interaction, heat transfer, fusion, solidifiion, and track formation.

Al doping of 4H-SiC by laser irradiation to coated Al film and its …

Aluminum (Al) is doped into 4H-SiC by excimer laser irradiation to a coated Al film on the 4H-SiC surface. Deep (>200nm in the depth) and high-. concentration (over 1 '' 1021/cm3on the surface) Al doping is realized by adjusting the Al film thickness for the laser fluence. Optical emission.

(PDF) Functionally graded metal matrix composite of …

Metal Deposition (LM D), or Constructi ve Laser Additive Dire ct (CLAD) allows to care fully at eas e control the v ariation of ch emical co mpositi on in an FGM at any position by using multiple

Phenomenological modelling of direct laser metal …

2020/10/20· One of the most promising technology in the AM field is the direct laser metal deposition (DLMD) process, which is becoming widely adopted in numerous industrial appliions. This appliion is based on the traditional laser welding technique with filler material, in which a laser source is used to melt the substrate and subsequentially a metal powder is injected in the pool to build the clad [ 6 ].

Fabriion of Metal Matrix Composite by Laser Metal …

2019/10/31· Laser Metal Deposition (LMD) offers new perspectives for the fabriion of metal matrix nanocomposites (MMnCs). Current methods to produce MMnCs by LMD systematically involve the premixing of the nanopowders and the micropowders or require in-situ strategies, thereby restricting the possibilities to adjust the nature, content and loion of the nano-reinforcement during printing.

Pulsed laser deposition of SiC thin films and influence of …

2021/1/1· The deposition of SiC thin film was performed by PLD, whose experimental setup is similar to that reported elsewhere , .Fig. 1 shows the pictorial view of the PLD deposition system and the Nd 3+:YAG laser used for the SiC thin film deposition.A Q-switched Nd 3+:YAG (Quantel, BRILB IR-10) laser with a repetition rate of 10 Hz and a pulse width of 10 ns was used.

(PDF) Improvement of the Laser Direct Metal …

Laser direct metal deposition (LDMD) is a rapid manufacturing technique, with high potential for development, from new part construction to worn or defective part repair, with various metallic alloys.

Screening of metal flux for SiC solution growth by a thin …

2011/10/1· Figure Figure1(a) 1 (a) shows a schematic of the triangle mask movements for preparing a ternary coinatorial composition spread on a 4H-SiC substrate by pulsed laser deposition (PLD). A thickness gradient was achieved by moving the masks continuously during the deposition.

Additive Manufacturing by Direct Metal Deposition

functional metal parts directly from CAD data by depositing metal powders pixel-by-pixel using laser melting and a patented closed-loop control system to maintain dimensional accu-racy and material integrity. With the feedback system, six-axis deposition, and

Materials and Processing for Gate Dielectrics on Silicon …

2012/3/27· Silicon Carbide (SiC) has been proven to be most suitable material, offering significant potential advantages both in high temperature as well as high power device technology. Moreover, SiC is the only material that can be thermally oxidized to grow high quality 2

(PDF) Improvement of the Laser Direct Metal …

Laser direct metal deposition (LDMD) is a rapid manufacturing technique, with high potential for development, from new part construction to worn or defective part repair, with various metallic alloys.

Laser‐assisted metal deposition from CuSO4‐based …

Laser radiation initiates the chemical reaction resulted in the reduction of the metal complexes to the metals in the liquid electrolyte, followed by the metal deposition on the substrate with a

Functionally graded metal matrix composite of Haynes …

2019/10/5· Direct laser metal deposition of functionally graded metal matrix composite structures was successfully fabried • HY282−SiC gradient deposit in every layer consisted of varying stoichiometry revealing novel microstructures • Increasing SiC particles in HY282

Pulsed Laser Deposition of CdTe, HgCdTe, and β-SiC …

Pulsed Laser Deposition of CdTe, HgCdTe, and β-SiC Thin Films on Silicon - Volume 268 We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.

Material-structure-performance integrated laser-metal additive …

2021/5/27· laser-metal additive manufacturing Dongdong Gu 1 *, Xinyu Shi , Reinhart Poprawe 2 , David L. Bourell 3 , Rossitza Setchi 4 , Jihong Zhu 5 Laser-metal additive manufacturing capabilities have advanced from single-material printing to

(PDF) An investigation of the effect of direct metal …

An investigation of the effect of direct metal deposition parameters on the characteristics of the deposited layers

Influence of laser metal deposition direction in the …

2020/5/4· In this context, a comparison between the mechanical wear of Ni-Cr-B-Si 1545-00 deposited via laser metal deposition is performed in two setups. The goal was to study the effect of the cladding direction in the coating wear resistance.

Facile integration of MoS2/SiC photodetector by direct …

Here, we integrate multilayer MoS 2 on monocrystalline SiC substrate though direct chemical vapor deposition. The MoS 2 film on SiC substrate shows high quality and thermal stability, in which the full width at half-maximum and first-order temperature coefficient for the E 2 g 1 Raman mode are 4.6 cm −1 and −0.01382 cm −1 /K, respectively.

US7297626B1 - Process for nickel silicide Ohmic contacts …

A Ni 2 Si-nSiC Ohmic contact is formed by pulsed laser ablation deposition (PLD) of Ni 2 Si source target deposited on a n-SiC substrate or SiC substrate wafer with SiC epilayer. The Ni 2 Si Ohmic contact on n-SiC was rapid thermal annealed at 950 C. for 30 s in