Abstract:
In accordance with an example embodiment of the present invention, a method is disclosed. The method comprises providing a two-dimensional object comprising a lll-V group material, e.g. Boron nitride (BN), Boron carbon nitride (BCN), Aluminium nitride (AIN), Gallium nitride (GaN), Indium Nitride (InN), Indium phosphide (InP), Indium arsenide (InAs), Boron phosphide (BP), Boron arsenide (BAs), and Gallium phosphide (GaP) and/or a Transition Metal Dichalcogenides (TMD) group material, e.g Molybdenum sulfide (MoS2), Molybdenum diselenide (MoSe2), Tungsten sulfide (WS2), Tungsten diselenide (WSe2), Niobium sulfide (NbS2), Vanadium sulfide (VS2,), and Tantalum sulfide(TaS2) into an environment comprising oxygen; and exposing at least one part of the two-dimensional object to photonic irradiation in said environment, thereby oxidizing at least part of the material of the exposed part of the two-dimensional object.
Abstract:
The invention comprises methods and apparatuses for the electrorefining of Mg from Al or Mg alloy scrap. The invention utilizes the density and charge features of Mg present in a melted alloy to continuously extract Mg and Mg alloys from a melted Al alloy feed.
Abstract:
Die Erfindung betrifft ein Verfahren zur Herstellung eines pulverförmigen Precursormaterials der folgenden allgemeinen Zusammensetzung I oder II oder III oder IV: I: (Ca y Sr 1-y ) AlSiN 3 :X1 II: (Ca b Sr a Li 1-a-b ) AISi (N 1-C F C ) 3 :X2 III : Ζ 5-δ Αl 4-2δ Si 8+2δ Ν 18 : X3 IV: ( Z i-d Li d ) 5-δ Αl 4-2δ Si 8+2δ (N 1-X F X ) 18 : X4 mit den Verfahrensschritten: A) Herstellen einer pulverförmigen Mischung von Edukten,wobei die Edukte Ionen der oben genannten Zusammensetzungen I und/oder II und/oder III und/oder IV umfasst, B) Glühen der Mischung unter Schutzgasatmosphäre, anschließendes Mahlen, wobei im Verfahrensschritt A) als Edukt mindestens ein Siliziumnitrid mit einer spezifischen Oberfläche von größer oder gleich 5 m 2 /g und kleiner oder gleich 100 m 2 /g ausgewählt wird, wobei das Glühen im Verfahrensschritt B) bei einer Temperatur von kleiner oder gleich 1550 °C durchgeführt wird.
Abstract:
The invention relates to method for manufacturing of ceramics, where ceramic particles are mixed with a liquid medium to make a mixture of ceramic particles and mixing medium where the ceramic particles are distributed. The mixture is formed in subsequent processing steps of shaping, drying and firing to a ceramic body. The method comprises - mixing ceramic particles with liquid dispersion of fibril cellulose to form said mixture, and - removing the liquid in the subsequent processing steps to form the ceramic body.
Abstract:
"Green", ceramic tapes intended as building blocks for making complex, fully ceramic components and devices for electronic-, lab-on-chip-, and sensing applications, the manufacture of which comprises in sequence: I. mixing of a ceramic "green" paste, II. homogenisation of a ceramic "green" paste, III. dimensioning and optionally structuring the ceramic "green" paste, IV. drying of the dimensioned and structured ceramic paste, in which:. step iii) is performed in a combination of an extruder and a calender, the extruder being provided with a circular extrusion die,. splitting and unfolding the extruded tube to a flat, continuous tape strip,. using methylcellulose or derivatives thereof as binder, and. an additional step chosen among cutting and punching the thus dimensioned and optionally structured "green" paste, thereby making thick, "green" tapes. A method for its manufacture is also contemplated.
Abstract:
Laboratory heat press consists of furnace part equipped with dilatometer which is placed beneath removable double-acting pneumatic cylinder anchored on four shafts, of power supply and of computer which regulates process and collects data, while in the working space is situated graphite press die with sample, which is placed on sliding piston holder and the device is equipped with control electronics. Heating equipment is graphite element, and around the element are situated graphite shields made from solid graphite and graphite wool insulation. Outer shell of furnace and both flanges are water cooled. Flanges are equipped with holes for thrust pistons and the furnace shell contains hole for connecting the vacuum pump and hole for installation of the pyrometer. Graphite pressing die with sample is equipped with pistons, which are influenced by power from double-acting pneumatic cylinder, while on the both graphite pistons are graphite radiative rings and between them is graphite wool.