• No results found

floating zone method

Characterization of Directionally Solidified B4C TiB2 Composites
Prepared by a Floating Zone Method

Characterization of Directionally Solidified B4C TiB2 Composites Prepared by a Floating Zone Method

... figure X-ray diffraction and transmission electron microscopy (TEM). The microstructure was observed with scanning elec- tron microscopy (SEM). The electrical conductivity ( σ ) was measured by a dc four-probe ...

9

Preparation of Directionally Solidified B4C  TiB2  SiC Ternary Eutectic Composites by a Floating Zone Method and Their Properties

Preparation of Directionally Solidified B4C TiB2 SiC Ternary Eutectic Composites by a Floating Zone Method and Their Properties

... probed method for rectangular specimens (3 3 8 mm). A laser flash method was employed to measure thermal conductivity using disk specimens (10 mm in ...

6

Oxygen Distribution in Titanium Single Crystal Fabricated by Optical Floating Zone Method under Extremely Low Oxygen Partial Pressure

Oxygen Distribution in Titanium Single Crystal Fabricated by Optical Floating Zone Method under Extremely Low Oxygen Partial Pressure

... In this study, commercial titanium rods (JIS 2nd grade, 15 mm 150 mm) were used as the mother ingots. The nominal oxygen content in the rod was 980 mass ppm. Hereafter, the unit ‘‘ppm’’ will be used to denote ‘‘mass ...

7

Characterization of Directionally Solidified B4C SiC Composites Prepared
by a Floating Zone Method

Characterization of Directionally Solidified B4C SiC Composites Prepared by a Floating Zone Method

... The lattice parameters and phases were determined by X-ray powder diffraction (XRD). The growth direction and crystal orientation were investigated by pole figure X-ray diffraction and transmission electron microscopy ...

7

Differential interferometric synthetic aperture radar  for tide modelling in Antarctic ice-shelf grounding zones

Differential interferometric synthetic aperture radar for tide modelling in Antarctic ice-shelf grounding zones

... where ν is ice viscosity. The following boundary conditions are applied for both models: the upstream boundary of the model domains on the grounded portion are anchored rigidly (w = 0, ∇ 2 w = 0), and the downstream ...

21

Effect of Floating Zone Refining under Reduced Hydrogen Pressure
on Copper Purification

Effect of Floating Zone Refining under Reduced Hydrogen Pressure on Copper Purification

... material, floating zone melting under a slight oxidizing atmosphere for the first several passes could be available for converting them to insoluble oxides by in- ternal ...molten zone, as observed ...

6

Evaluation method for waterflooded zone with geochemistry

Evaluation method for waterflooded zone with geochemistry

... Oil field after entering for determining, various types of reservoir water flooding is serious, water flooded layer interpretation harder, to meet the demand of oilfield development, must develop water flooded layer ...

6

The Choice of Exchange Rate Regimes for EU Accession Countries

The Choice of Exchange Rate Regimes for EU Accession Countries

... Before examining the question of what will be or should be the exchange rate policy of the candidate countries, current practices will be reviewed. Among the 10 EU candidate countries, there are three currency boards, ...

20

SEISMIC EVALUATION OF MULTISTORIED BUILDING WITH AND WITHOUT FLOATING COLUMN

SEISMIC EVALUATION OF MULTISTORIED BUILDING WITH AND WITHOUT FLOATING COLUMN

... This paper deals with the analysis of a seven storey building. The analysis is done by dynamic method using Response Spectrum Method. The various structural responses such as storey displacement, storey ...

10

High-purity Platinum for Microelectronics42-46

High-purity Platinum for Microelectronics42-46

... few high vapour pressure metals, the high vacuum required plays a major role in the purification process for most electron beam. floating zone operations[r] ...

5

On the existence of solution of a two point boundary value problem in a cylindrical floating zone

On the existence of solution of a two point boundary value problem in a cylindrical floating zone

... a liquid metal or semiconductor in a cylindrical floating zone of length 2L and radius R. In dimensionless coordinates (r ,y), points of the cylinder are given by −1 ≤ y = Y /L ≤ 1, 0 ≤ x = r /R ≤ 1, with free ...

9

G26 5595 0 Automatic Floating Point Operations Sep61 pdf

G26 5595 0 Automatic Floating Point Operations Sep61 pdf

... Four are for arithmetic computations; floating add, floating subtract, floating multiply, and floating divide; three control field size and location: floating shift right, floating shift[r] ...

15

Ultra Purification of Electrolytic Iron by Cold Crucible Induction Melting

and Induction Heating Floating Zone Melting in Ultra High Vacuum

Ultra Purification of Electrolytic Iron by Cold Crucible Induction Melting and Induction Heating Floating Zone Melting in Ultra High Vacuum

... Ultra-high vacuum attained in the chamber of a melting fur- nace is thought to have three effects on the purification of iron; first, a direct purification effect by evaporation of im- purities of which vapor pressure is ...

5

Modelling VARTM process induced variations on bending performance of composite Omega beams

Modelling VARTM process induced variations on bending performance of composite Omega beams

... The arrows in Figure 10b indicate voids within the skin of Omega beam 1. The image was acquired through x-ray micro computed tomography. The exact association between delamination and void distribution was not within the ...

23

Optimizing the two step floating catchment area method for measuring spatial accessibility to medical clinics in Montreal

Optimizing the two step floating catchment area method for measuring spatial accessibility to medical clinics in Montreal

... There are some limitations with the 2SFCA method. One of these is its assumption that all services within the same catchment area are equally accessible by all residents. This is not always true since ...

12

Bioremediation in Water Environment: Controlled Electro Stimulation of Organic Matter Self Purification in Aquatic Environments

Bioremediation in Water Environment: Controlled Electro Stimulation of Organic Matter Self Purification in Aquatic Environments

... Classical electrical circuit includes voltage meters (or a potentiostat to a finer understanding of the system) connected in parallel to properly measure cell voltages and potentials between electrodes. The current is ...

40

k=0Magnetic Structure and Absence of Ferroelectricity in SmFeO3

k=0Magnetic Structure and Absence of Ferroelectricity in SmFeO3

... SmFeO 3 has attracted considerable attention very recently due to its reported multiferroic properties above room temperature. We have performed powder and single crystal neutron diffraction as well as complementary ...

6

Effect of Flexural and Membrane Stiffness on the Analysis of Floating Roofs

Effect of Flexural and Membrane Stiffness on the Analysis of Floating Roofs

... Floating roofs essentially consist of a circular deck plate and an outer circumferential pontoon as is shown in Figure 1. Applying variational principles simultaneously on the deck plate and the liquid facilitates ...

8

Oxide Self-Flux in Optical Floating Zone Crystal Growth of Nickel Niobate (NiNb2O6)

Oxide Self-Flux in Optical Floating Zone Crystal Growth of Nickel Niobate (NiNb2O6)

... Powder x-ray diffraction from the black β -NiNb 2 O 6 single crystal (Top line, black - Growth 15), the green single crystal (Bottom line, green - Growth 10), and a reference database or[r] ...

9

FORMULATION AND IN VITRO EVALUATION OF EFFERVESCENT FLOATING DRUG DELIVERY SYSTEM OF CIPROFLOXACIN TABLET

FORMULATION AND IN VITRO EVALUATION OF EFFERVESCENT FLOATING DRUG DELIVERY SYSTEM OF CIPROFLOXACIN TABLET

... In order to investigate the effect of effervescent agents such as sodium bicarbonate and calcium carbonate on effervescent floating tablet of ciprofloxacin, there are six formulation were prepared F1-F6 as ...

11

Show all 10000 documents...

Related subjects