Continual boron-doped diamond parts with ends are formed in a non-doped insulating diamond crystal. Ohmic electrodes are deposited on the ends of the boron-doped diamond parts. Non-doped diamond encloses and insulates the boron-doped diamond parts. When the boron-doped diamond parts are supplied with a current, the boron-doped diamond parts generate Joule's heat. The device acts as a heater. Since the whole heater is made of diamond crystal, the heater can posses an extremely small size. The hea...

A diamond without plate is described, in which the facets of the upper part are more slanted toward the girdle level than the facets of the lower part. To create a diamond that, with the least possible quantity of material, gives one an impression of hardness and clarity when looking down on it, the angle between one of the equally large upper part facets and the preferably polygonal girdle level as well as the angle between one of the equally large lower part facets and the girdle level is chos...

The method of making a diamond product in accordance with the present invention comprises the steps of forming a diamond substrate (50) with a mask layer (52), and etching the diamond substrate (50) formed with the mask layer (52) with a plasma of a mixed gas composed of a gas containing an oxygen atom and a gas containing a fluorine atom, whereas the fluorine atom concentration is within the range of 0.04% to 6% with respect to the total number of atoms in the mixed gas.

Thermally stable diamond constructions comprise a diamond body having a plurality of bonded diamond crystals and interstitial regions disposed among the crystals. A metallic substrate is attached to the body. The body includes a first region substantially free of a catalyst material that extends a partial depth from a surface into the body, and a second region that includes the catalyst material. The body can include natural diamond grains and/or a blend of natural and synthetic diamond grains, ...

A method of producing a doped diamond, typically a boron doped diamond, is provided. The method involves multiple cold implantation/rapid annealing steps. A doped diamond can be produced containing a high concentration of dopant atoms.

Diamond microtip field emitters are used in triode vacuum microelectronic devices, sensors and displays. Diamond triode devices having integral anode and grid structures can be fabricated. Ultra-sharp tips are formed on the emitters in a fabrication process in which diamond is deposited into mold cavities in a two-step deposition sequence. During deposition of the diamond, the carbon graphite content is carefully controlled to enhance emission performance. The tips or the emitters are treated by...

Ten of pavilion main facets are formed with reference to the previously formed five of first pavilion main facets in which an initial first main facet is formed in a position centered on a line shifted approximately fifteen degrees from the ridge of the raw diamond on the pavilion side. Ten of pavilion main facets 19 radiate from the curette 18 and twenty of lower girdle facets are formed between the adjacent pavilion main facets on the pavilion side of the diamond 1.

Disclosed herein is an improved method for joining diamond to metal using a gold-tantalum or gold-niobium solder. The method utilizes powdered material, and a clamp to keep the diamond in place during the soldering step. The article produced has higher mechanical stability than articles produced by known procedures.

A coupling for removable attachment to the end of a resilient flexible washing machine liquid discharge hose, having diamond-shaped hose engaging beads or lugs on the interior surface of the coupling, is provided. The coupling is further provided with an outwardly directed annular flange and internally with at least two opposed radially inwardly directed stop lugs to limit telescoping insertion of the flexible rubber hose. A modified form of the diamond beads or lugs is also disclosed. The coupl...

A pressure scanning diamond stylus having an elongated lower edge in a wear resistant crystallographic orientation.