Titanium Oxide Particulates

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• Metal-Matrix Composites
  compared with steel. Ductile superconductors have been fabricated with a matrix of copper and superconducting filaments of niobium-titanium. Copper reinforced with tungsten particles or aluminum oxide particles is used in heat sinks and electronic packaging. Metal-Matrix Composites | Machine Design. Skip...
• Evaluating reusable HDPE containers for delivery of high-purity hydrofluoric acid
  for chemicals used in such critical cleaning operations as the RCA process and processes using solutions of hydrofluoric acid. Metallic impurities can adversely affect oxide integrity, reduce minority carrier lifetimes, provide nucleation sites for stacking faults during film growth, and cause surface...
• Medical Device Link . Novel Electrochemical Techniques for Analysis of Metallic Biomaterials Surfaces
  as a passive oxide film or as a particulate oxide; and corresponding reduction reactions that typically involve oxygen reduction but may also include biochemical species such as proteins. These phenomena vary microscopically over the alloy surface and depend on the local environment, local alloy...
• MICRO: Process Equipment Control - Richardson (April 2000)
  The control of both metallic and particulate contamination during wafer processing has become increasingly critical as device geometries have continued to shrink. Minimizing contaminant levels in high-density polysilicon etch chambers is particularly important because the gate oxide is exposed...
• Treating wastewater from CMP using ultrafiltration
  in Figure 1, silica particles in an oxide slurry can range in size from 20 to 80 nm, far too small to be retained by microfilters alone. To be effective, cross-flow microfilters need to build up a dynamic layer, similar to a filter precoat. Achieving this buildup frequently requires the addition...
• MICRO:July/August 98:Product Technology News
  , titanium, and tungsten. No modifications to installed process tools are required. All strippers are shipped in low-particulate containers. (Semicon West, San Francisco, Esplanade, Booth 4122) TOC Analzyer Thornton Associates Waltham, MA Unlike batch-measurement tools, the 502P analyzer...
• Tantalum Biocompatability Report (.pdf)
  , then slight discolouration has been noted on some occasions. This is similar to the. situation which occurs with titanium and titanium alloys, and is possible secondary to the removal. of oxide particulates. Intake of tantalum and tantalum oxide produces very low levels of tantalum. absorption from...
• Quality Test of Rice Hull Ash Filter Aids (.pdf)
  . Other By Weight %. Aluminum Oxide. 0.006--0.039. Ferric Oxide. 0.006--0.052. Calcium Oxide. 0.48--0.81. Magnesium Oxide. 0.13--0.53. Sulfur Trioxide. 0.018--0.24. Sodium Oxide. 0.018--0.18. Potassium Oxide. 1.74--2.69. Titanium Oxide. 0.003--0.02. Phosphorus Pentoxide. 0.74--1.23. Manganic Oxide...
• Powder metalstake on new shapes
  received a U.S. Dept. of Energy research grant to commercialize its titanium matrix-composite material for die-casting tooling. The material has the potential to increase the service life of tooling by a factor of five, Dynamet reports. Pacific Sintered Metals (PSM) establishes the Polyalloys Div...
• Pre-Treatments Used With Coatings
  the charts below: Steel-Chromate (shows processes for steel, stainless steel, aluminum, nickel & chrome plate). Cadmium-Titanium (shows processes for cadmium or zinc plate, copper or zinc plate, magnesium & titanium). The marriage of pre-treatments and dry film lubrication is a bit like the Chinese...

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