Results 41 to 50 of about 219,973 (335)

Humidity Control for Front Opening Unified Pod after Opening Its Door in a Mini-Environment

open access: yesApplied Sciences, 2018
Wafers are usually placed in a front opening unified pod (FOUP) while waiting in the line of manufacturing processes; a conventional way for preventing (or removing) contamination is to purge an FOUP with a gas, so as to maintain the cleanliness level ...
Shih-Cheng Hu   +3 more
doaj   +1 more source

On the Influence of Antioxidants and Recycled MgO–C Source Material on the Mechanical Properties of Carbon‐Bonded Magnesia Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
The presented study focuses on the fracture behaviour of carbon‐bonded magnesia MgO–C refractories, where environmentally friendly fructose, collagen and lignin serve as temporary binding agents. The partial substitution of the source material with recycled MgO–C reduces the fracture resistance, which can be counteracted by the additional introduction ...
Marc Neumann   +6 more
wiley   +1 more source

Effect of Ingress on Flow and Heat Transfer Upstream and Downstream of a Rotating Turbine Disc

open access: yesAerospace, 2019
Ingress is the penetration of a hot mainstream gas in a turbine annulus through the rim seal into the wheel-space between the rotating turbine disc (the rotor) and the adjacent stationary casing (the stator).
Hui Tang   +6 more
doaj   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

open access: yesAdvanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm   +5 more
wiley   +1 more source

Development of local evacuation system for inhibiting oxidization in atmospheric-pressure plasma jet nitriding

open access: yesResults in Physics, 2019
To inhibit oxidization during nitriding process using the atmospheric-pressure plasma jet, we developed a local evacuation system. By this system, we perform vacuum purge in the treatment atmosphere locally to reduce residual oxygen.
Seiga Chiba   +4 more
doaj   +1 more source

Flow characteristics and velocity fields of a front opening unified pod at open door condition

open access: yesCase Studies in Thermal Engineering, 2020
Particle contamination decreases product quality in semiconductor industries. Nowadays, the size of the chips and features has significantly reduced; thus increasing the importance of moisture removal from front opening unified pods during manufacturing ...
Tee Lin   +6 more
doaj   +1 more source

Tool provides constant purge during tube welding [PDF]

open access: yes, 1966
Tool provides a constant purge of inert gas during in-place welding of tubular components to prevent contamination and oxidation.
Lang, E. R.
core   +1 more source

Low background techniques for the Borexino nylon vessels [PDF]

open access: yes, 2004
Borexino is an organic liquid scintillator underground detector for low energy solar neutrinos. The experiment has to satisfy extremely stringent low background requirements.
Pocar, A.
core   +3 more sources

Sol–Gel Derived Polymer Precursors for Stereolithography of ZrC

open access: yesAdvanced Engineering Materials, EarlyView.
ZrC is a critical material target for extreme temperature conditions. This report describes a protocol for preparing ZrC ceramics via stereolithography and examines the impact of the polymer matrix on carbothermal reduction and mechanical stability of 3D printed ZrC.
Charles J. Rafalko   +2 more
wiley   +1 more source

Plastic tubing protects flexible copper hose [PDF]

open access: yes, 1966
Flexible copper purge and coolant hoses is covered with a high-temperature shrinkable plastic for protection against severe vibration during rocket engine tests.
Mellgren, B. E.
core   +1 more source

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