A chemically-machinable glass-magnet composition comprising a photosensitive chemically machinable glass having a magnetic material in admit therewith, wherein the photosensitive chemically machinable glass is formed of SiO.sub.2 --Li.sub.2 O--Al.sub.2 O.sub.3 containing photosensitive materials selected from silver, gold and copper and a cerium dioxide sensitizer; and the magnetic material is a Ni-Cu-Zn ferrite.

A piezoelectric material includes a PZT ceramic, and a noble metal component. The noble metal component is added to the PZT ceramic in an amount of 0.35 parts by volume or more with respect to 100 parts by volume of the PZT ceramic, and is at least one element selected from the group consisting of Ru, Rh, Pd, Os, Ir, Pt and Au, or is an alloy of silver (Ag) and the noble metal element. A piezoelectric element includes a pair of external electrodes, at least a pair of piezoelectric layers, and a ...

A dental paste-like porcelain is disclosed, including a mixture in a paste-like state of from 7 to 45 parts by weight of a binder comprising a synthetic and/or natural, hydrophilic group-containing polymeric material dissolved in one or two or more organic solvents selected from a dihydric or trihydric alcohol, a hydroxyl group-remaining ether and a hydroxy(meth) acrylate, and/or water and having a viscosity, as measured at a constant temperature of 23.degree. C. and at a conversion constant of ...

A manufacturing method for a nanocrystal light emission substance having a nano structure crystal, doped with an activator and cured with ultraviolet light. The nanocrystal light emission substance is synthesized by a liquid phase co-precipitation process. During the liquid phase reaction, an organic acid, such as acrylic acid or methacrylic acid, is added. Alternatively, a high molecular organic acid, such as polyacrylic or polymethacrylic acid, polystyrene, is added after the liquid phase reac...

A ferrite material based on nickel, copper and zinc has the following formula: in which: A material of this kind has the advantage of showing reduced losses.

The invention relates to a process for preparing a porous ceramic body, which process is based on a negative replica method. The invention further relates to a ceramic body obtainable by said method and to its use as a scaffold for tissue engineering.

A yttrium silicate based phosphor and a method for synthesizing the phosphor by surface coating. The yttrium silicate based phosphor is synthesized by surface coating a Y.sub.2 SiO.sub.5 :Tb phosphor coated with a strontium (Sr)-thiogallate phosphor. In the method, Ga(NO.sub.3).sub.3, Eu(NO.sub.3).sub.3 and SrCO.sub.3 are mixed and stirred until the SrCO.sub.3 is completely dissolved. Next, a Y.sub.2 SiO.sub.5 :Tb phosphor is added to the mixture, and a sodium hydroxide (NaOH) is added to the mi...

A chemical mechanical polishing slurry comprising an oxidizing agent, a complexing agent, an abrasive, and an optional surfactant, as well as a method for using the chemical mechanical polishing slurry to remove copper alloy, titanium, titanium nitride, tantalum and tantalum nitride containing layers from a substrate. The slurry does not include a separate film-forming agent.

The invention relates to hard magnetic films made of a polymer matrix and hard magnetic powder particles distributed therein. The films have a thickness of preferably 100 to 500 .mu.m and are flexible. They can be produced by using a casting method and are suited, for example, as hard magnetic components in miniature motors, polarized relays or sensors.

An extrudable magnet composition includes composite particles including thermoplastic resin and magnetic material, and a surface additive selected from silicon dioxide particles and ferrite particles, wherein the surface additive is applied to a surface of the composite particles.