A New Method for Growing GaAs Epilayers by Low Pressure Organometallics

In tests on low-pressure oil seals the technique of designing a synthetic rubber lip type of rotary seal so that it is “run-in” on the shaft was applied to finishing the lip of a seal for reciprocating duty. The performance of a seal so treated is shown to be greatly superior to that of untreated seals. A new method of measuring the inward load was devised and is described in detail. Interesting data on friction were noted and are shown graphically.

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A New Method to Measure Aerosol Particle Bounce Using a Cascade Electrical Low Pressure Impactor

Aerosol Science and Technology ◽

10.1080/02786826.2015.1036393 ◽

2015 ◽

Vol 49 (6) ◽

pp. 390-399 ◽

Cited By ~ 13

Author(s):

Shashank Jain ◽

Giuseppe A. Petrucci

Keyword(s):

Aerosol Particle ◽

Low Pressure ◽

New Method ◽

Particle Bounce

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Lamination of LTCC at low pressure and moderate temperature using screen-printed adhesives

Additional Conferences (Device Packaging HiTEC HiTEN & CICMT) ◽

10.4071/cicmt-2012-wa35 ◽

2012 ◽

Vol 2012 (CICMT) ◽

pp. 000348-000352 ◽

Cited By ~ 2

Author(s):

Thomas Maeder ◽

Bo Jiang ◽

Fabrizio Vecchio ◽

Caroline Jacq ◽

Peter Ryser ◽

...

Keyword(s):

Low Temperature ◽

Laser Cutting ◽

Screen Printing ◽

Room Temperature ◽

Low Pressure ◽

New Method ◽

Adhesive Layers ◽

Adhesive Formulation ◽

Low Pressures ◽

Processing Steps

In this work, we investigate a new method of low-pressure lamination of low-temperature cofired ceramic (LTCC) tapes, by pre-coating with specially-formulated adhesive layers. This allows fabrication of intricate structures that would be destroyed by high lamination pressures, yet preserves compatibility with standard processing operations, such as blanking, laser cutting, punching, via filling and screen printing. Techniques proposed previously are application of adhesive tapes, solvents or glues. These methods are applied after the tape processing steps and therefore require an extra operation in the processing chain, which may be unpractical, especially if the tape is very thin has been extensively cut. In our procedure, the adhesives are printed and dried on the blanked tape before any other operation, with the drying step also useful for pre-conditioning the tapes, which may then be stored as "standard" blanks. The adhesives are formulated to have low tack at room temperature, making them compatible with standard processing, but to become very soft at 50–60°C, allowing lamination at low pressures. Compatibility with different tape materials is investigated, and the requirements for adequate adhesive formulation are discussed.

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Performance of low pressure tissue equivalent chambers and a new method for parameterizing the dose equivalent

10.2172/5339402 ◽

1986 ◽

Author(s):

Y. Eisen ◽

D.G. Vasilik ◽

R.J. Brake ◽

B.H. Erkkila ◽

G.J. Littlejohn

Keyword(s):

Low Pressure ◽

New Method ◽

Dose Equivalent ◽

Tissue Equivalent

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Experimental Study of Low-Pressure Water Jet Assisted Laser Drilling on Al2O3 Ceramic

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.760-762.780 ◽

2013 ◽

Vol 760-762 ◽

pp. 780-784 ◽

Cited By ~ 1

Author(s):

Zhi Wei Pang ◽

Gen Fu Yuan

Keyword(s):

Surface Quality ◽

Laser Processing ◽

Molten Slag ◽

Low Pressure ◽

Processing Parameters ◽

Water Jet ◽

New Method ◽

Processing Quality ◽

Pressure Water ◽

The Stability

A study on low pressure water jet assisted laser processing is presented. This new method is researched by drilling on Al2O3ceramics material. A comprehensive research on the influence of laser processing parameters on surface quality with this method is conducted. The microcosmic appearances of the machining surfaces obtained from normal laser processing and composite processing were comparatively analyzed. At the same time, through measuring the holes in the 3-D morphology, the influences of water jet velocity and laser processing parameters on the surface quality are presented. The results show that, the surface quality is significantly improved with this new method which combines low pressure jet into laser processing. The molten slag can be significantly reduced and the stability of processing quality can be improved much.

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New method of calibrating low-pressure manometers

Measurement Techniques ◽

10.1007/bf00824665 ◽

1977 ◽

Vol 20 (6) ◽

pp. 852-857

Author(s):

V. V. Kuz'min

Keyword(s):

Low Pressure ◽

New Method

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Effects of Electrical Discharges in Low Pressure Gases on the Morphology of Polyethylene Crystals

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100052730 ◽

1974 ◽

Vol 32 ◽

pp. 544-545

Author(s):

L.H. Bolz ◽

D.H. Reneker

Keyword(s):

Power Distribution ◽

Electrical Discharge ◽

Dielectric Breakdown ◽

Ionic Species ◽

Low Pressure ◽

Polymer Surfaces ◽

Electrical Discharges ◽

Adhesive Bonds ◽

Power Distribution Lines ◽

Modification Of The Surface

The attack, on the surface of a polymer, by the atomic, molecular and ionic species that are created in a low pressure electrical discharge in a gas is interesting because: 1) significant interior morphological features may be revealed, 2) dielectric breakdown of polymeric insulation on high voltage power distribution lines involves the attack on the polymer of such species created in a corona discharge, 3) adhesive bonds formed between polymer surfaces subjected to such SDecies are much stronger than bonds between untreated surfaces, 4) the chemical modification of the surface creates a reactive surface to which a thin layer of another polymer may be bonded by glow discharge polymerization.

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