Siemens Aktiengesellschaft

Osram Opto Semiconductors Gmbh

Osram Ag

Gia Khanh Pham

Carsten Schuh

Ute Liepold

Mikael Ahlstedt

Steffen Walter

Stefan Lampenscherf

Christian Hoffmann

Joerg Freudenberger

Thomas Hammer

Andreas Kloss

David S Segletes

Richard Eichhorn

Jan Matschulla

Andreas Pickard

Philip Clissold Howell

Raquel De La Pena Alonso

Steffan Walter

Niels Van Der Laag

Disclosed are new boronizing compositions consisting of boron fluoride and boron oxide, borax, or an iron boride. The compositions reduce the heating temperature and time. Further disclosed are methods of boronizing a metal substrate including these compositions, or any combination thereof.

Boronizing composition and method for surface treatment of steels

A gas turbine arrangement, a power plant having such a gas turbine arrangement and a method for operating the power plant are provided. A compressor may be mechanically coupled to a turbine which can be driven by combustion gases, such as can be generated by combustion of fuel with the compressed combustion air. An exhaust system may be used to discharge the combustion gases. One or more thermoelectric generators may be thermally coupled to the exhaust system for generating electrical energy from residual heat of the combustion gases which pass in the exhaust system. This gas turbine arrangement allows waste heat from the combustion gases to be utilized and thus the overall efficiency of the gas turbine arrangement can be increased and pollutant emissions may be lowered.

Gas turbine arrangement, power plant and method for the operation thereof

A rotary anode for an X-ray tube includes a ceramic base body that carries a focal path for emitting X-rays during electron irradiation. The ceramic base body is made of a mixture of silicon carbide and at least one high temperature-resistant diboride.

Rotary anode and method for producing a base body for a rotary anode

A ceramic conversion element includes a multiplicity of first regions and a multiplicity of second regions, wherein the first regions vitreous, ceramic or monocrystalline fashion, at least either the first regions or the second regions are columnar and have a preferred direction forming an angle of at most 45&#xb0; with a normal to a main surface of the conversion element, the first regions convert electromagnetic radiation in a first wavelength range into electromagnetic radiation in a second wavelength range different from the first wavelength range, the second regions convert electromagnetic radiation in the first wavelength range into electromagnetic radiation in a third wavelength range different from the first and second wavelength ranges, wherein the second regions are formed by a resin into which phosphor particles are embedded.

Ceramic conversion element, optoelectronic component comprising a ceramic conversion element, and methods for producing a ceramic conversion element

An X-ray tube includes a vacuum-filled housing and an anode contained in the vacuum-filled housing. The anode is operable to produce an X-ray beam based on electrons emitted from a cathode and attracted by a high voltage applied to the anode. The X-ray tube also includes a high-voltage power line introduced from an external side of the housing for supplying the anode with a high-voltage potential. The X-ray tube includes an electrical feed for electrically insulating the high-voltage power line from the housing. The electrical feed in the X-ray tube includes at least two insulating layers radially between the high-voltage power line and the housing. The at least two insulating layers are separated from one another by a metallic coating.

X-ray tube

A conversion component for arrangement downstream at a radiation-outcoupling face of a radiation-emitting semiconductor chip is specified. The component has a converter element with a first major face, a second major face opposite the first major face and at least one side face. The side face connects together the two major faces. The converter element contains at least one luminescence conversion material, which is suitable for absorbing electromagnetic radiation of one wavelength range and for re-emitting the absorbed electromagnetic radiation in another wavelength range with larger wavelengths than the absorbed radiation. A reflective coating is designed to reflect electromagnetic radiation exiting from the converter element and to reflect it at least in part back into the converter element. The reflective coating covers the converter element at least in places at the at least one side face.

Conversion component

A ceramic conversion element having a multiplicity of columnar regions arranged within a ceramic or vitreous matrix, wherein the columnar regions have a preferential direction which makes an angle of at most 45&#xb0; with a normal to the main surface of the conversion element, at least either the columnar regions or the matrix convert electromagnetic radiation of a first wavelength range into electromagnetic radiation of a second wavelength range different from the first wavelength range and, the columnar regions are formed by wavelength-converting monocrystalline or ceramic fibers and/or monocrystalline or ceramic platelets, said fibers and/or said platelets are provided with a reflective coating.

Ceramic conversion element, optoelectronic semiconductor component comprising a ceramic conversion element, and method for producing a ceramic conversion element

An electrode for a high-pressure discharge lamp may include a shaft and a head mounted thereon, wherein at least a section of the head includes ceramic material, wherein the ceramic material is a boride or carbide.

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Charlotte, NC, United States of America

Gia Khanh Pham