hafnium silicide obtained

Hafnium Carbide Powder Shanghai Greenearth Chemicals Co LtdHafnium carbide powder is silvery grey in color and it is obtained from reaction of hafnium oxide and carbon in high temperature This product is not present as a free element in the environment It is available with zirconium compounds and stays an important component of super alloys -hafnium silicide obtained-,Synthesis and Characterization of Hafnium Carbide Based The obtained hafnium carbide powder was densified via spark plasma sintering SPS at 1950 oC using molybdenun silicide as sintering additive Microstructure and mechanical properties of the obtained hafnium carbide ceramics were investigated …… Get More

n k database ФТИ им Иоффе РАН

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Hafnium silicide formation on Si 100 upon annealing G

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Phasestabilityofhafniumoxideandzirconiumoxideonsiliconsubs

From the obtained thermodynamic descriptions phase diagrams pertinent to thin film processing were calculated We found that the relative stability of the metal silicates with respect to their binary oxides plays a critical role in silicide formation It was observed that both the HfO 2/Si and ZrO ......Get more

In Situ Real-Time Characterization of Silicide

Evidence was obtained indicating that the coarsening of the silicide islands is strongly influenced by local variations in the size shape and number of nanostructures on the surface ......Get more

Ultrathin Hafnium Oxide with Low Leakage and Excellent

Ultrathin Hafnium Oxide with Low Leakage and Excellent Reliability for Alternative Gate Dielectric Application Byoung Hun Lee Laegu Kang Wen-Jie Qi Renee ......Get more

Reactive epitaxy of metallic hafnium silicide nanocrystals

Hafnium silicide islanding occurs spontaneously when metallic Hf is deposited on a Si 001 surface and subsequently annealed at 750 °C Different coverages were investigated by scanning tunneling microscopy STM in order to verify distinct stages of island formation Small islands occurred for ......Get more

Wirelike growth of self-assembled hafnium silicides oxide

Abstract A wirelike shape of Hf silicides which is not observed in silicides directly grown on Si 0 0 1 has been obtained by oxide mediated epitaxy OME Hafnium deposition ˜0 4 and ˜0 2 ML onto ultrathin ˜1 nm SiO 2 and annealing at 900 ° C resulted in the formation of self-assembled wirelike silicides via a silicate phase Hf-O ......Get more

Reactive epitaxy of metallic hafnium silicide nanocrystals

Hafnium silicide islanding occurs spontaneously when metallic Hf is deposited on a Si 001 surface and subsequently annealed at 750°C Different coverages were investigated by scanning tunneling microscopy STM in order to verify distinct stages of island formation ......Get more

Solution-Based Synthesis of Hafnium Carbide HfC Powders

The obtained hafnium carbide powder was densified via spark plasma sintering SPS at 1950 oC using molybdenun silicide as sintering additive Microstructure and mechanical properties of the obtained hafnium carbide ceramics were investigated ......Get more

HAFNIUM IN MOLTEN SALTS ELECTROCHEMISTRY

on hafnium coatings roughness was established Different compounds of hafnium such as hafnium diboride hafnium-niobium and hafnium-copper alloys silicides of hafnium were obtained by electrochemical synthesis The fields of application of the hafnium and composite materials on the base of hafnium obtained from molten salts were shown ......Get more

Hafnium Hf AMERICAN ELEMENTS

Hafnium Properties Hafnium is a Block D Group 4 Period 6 element The number of electrons in each of Hafnium s shells is 2 8 18 32 10 2 and its electronic configuration is Xe 4f 14 5d 2 6s 2 The hafnium atom has a radius of 156 4 pm and its Van der Waals radius is 200 pm ......Get more

Electrochemical synthesis of hafnium silicides SpringerLink

Abstract The method of cyclic voltammetry was used to study cathodic processes in a molten salt of NaCl-KCl-NaF 10 wt % -K 2 HfF 6-K 2 SiF 6 The parameters of electrochemical synthesis allowing synthesizing hafnium silicides are determined and hafnium silicide HfSi 2 is obtained using galvanostatic electrolysis ......Get more

Wirelike growth of self-assembled hafnium silicides oxide

Wirelike growth of self-assembled hafnium silicides oxide mediated epitaxy Hafnium deposition ∼0 4 and ∼0 2 ML onto ultrathin ∼1 nm SiO 2 and annealing at 900 ° C resulted in the formation of self-assembled wirelike silicides via a silicate phase Hf–O–Si bonding units in the 600–800 ° C temperature range ......Get more

US7517515B2 Hafnium silicide target for forming gate

The present invention relates to a hafnium silicide target for forming a gate oxide film composed of HfSi 1 02-2 00 Obtained is a hafnium silicide target superior in workability and embrittlement resistance and suitable for forming a HfSiO film and HfSiON film that may be used as a high dielectric gate insulation film in substitute for a SiO 2 film and to the manufacturing method thereof ......Get more

Hafnium silicide formation on Si 100 upon annealing

High dielectric constant materials such as HfO{sub 2} have been extensively studied as alternatives to SiO{sub 2} in new generations of Si based devices Hf silicate/silicide formation has been reported in almost all literature studies of Hf based oxides on Si using different methods of ......Get more
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