cn105047859a - hot-isostatic-press intermediate-phase

Opportunities for Advanced Ceramics and Composites

Corresponding Author Centre for Nuclear Engineering, and Department of Materials, Imperial College London, SW7 2AZ UK Fellow, The American Ceramic Society.Author to whom correspondence should be addressed. e‐mail: w.e.leeimperial.ac.uk Search for more papers by this author

(PDF) Combined effects of the interstitial and Laplace

Free sintering, hot isostatic pressing (HIP), and hot forging are different ways to realize a key phase in which the primary mechanical properties of the final material are obtained. In order to be able to predict the final structure of a body undergoing such a process,

Hot isostatic pressing can substantially reduce the volume

Hot-Isostatic Pressing GeoRoc's Hot-Isostatic Pressing (HIPing) technology is potentially an exciting alternative treatment option for ILW wastes. HIPing is an existing method used to densify and consolidate materials by applying isostatic pressure at an elevated temperature in a pressure vessel.

Powder Technology From Landslides and Avalanches to Concrete

– Isothermal, controlled rate, two-step, hot press, hot isostatic pressing – Solid state, liquid phase, reactive sintering • New sintering processes, Spark Plasma Sintering, flash sintering, cold sintering • Typical questions, Powder Technology –Learning• Exam.

Cold Pressing

A typical microstructure of an in situ toughened sintered silicon nitride ceramic is shown in Fig. 1.By using pressure-assisted densification methods with pressures between 10 MPa (gas-pressure sintering) and 100 MPa (hot isostatic pressing), the sintering temperature could by raised above the decomposition temperature of silicon nitride and complete densification could be achieved even with

Hot consolidation and mechanical properties of

2010/6/24The present study is aimed to investigate the consolidation behaviour and mechanical properties of nanocrystalline equiatomic AlFeTiCrZnCu high entropy alloy after mechanical alloying. The consolidation was achieved by cold pressing with conventional sintering, vacuum hot pressing and hot isostatic pressing techniques. The microstructure and mechanical properties were evaluated.

Transparent ceramics

Transparent ceramics have recently acquired a high degree of interest and notoriety. Basic applications include lasers and cutting tools, transparent armor windows, night vision devices (NVD), and nose cones for heat seeking missiles. Currently available infrared (IR

High

To boost the use of electronic devices and driving mileage of electric vehicles, it is urgent to develop lithium-ion batteries (LIBs) with higher energy density and longer life. High-voltage and high-capacity cathode materials, such as LiCoO 2, LiNi 0.5 Mn 1.5 O 4, Ni-rich layered oxides, and lithium-rich layered oxides, are critically important for LIBs to obtain high energy density.

An overview of hot isostatic pressing

1992/2/1Hot isostatic pressing (HIP) is a manufacturing process that involves simultaneous application of high temperature and pressure. It was invented in 1955 for diffusion-bonding applications in the nuclear industry and has since found numerous applications in other fields.

HIP17

Hot isostatic pressing (HIP) technology has been known for more than 50 years, and is considered today as being a standard production route for many applications. The HIP process applies high pressure (50-200 MPa) and high temperature (400-2,000C) to the exterior surface of parts via an inert gas (e.g., argon or nitrogen).

New Insights into the Brill Transition in Polyamide 11

The thermal stability of several crystal polymorphs in polyamide 11 (PA11) and polyamide 6 (PA6) has been investigated by means of in situ X-ray experiments. In the case of PA11, δ′ and α′ phases display a Brill transition far below the melting point. Both phases transform into a (pseudo)-hexagonal HT δ phase above 100 C. The latter turns back into the most stable α′ phase upon

HIP17

Hot isostatic pressing (HIP) technology has been known for more than 50 years, and is considered today as being a standard production route for many applications. The HIP process applies high pressure (50-200 MPa) and high temperature (400-2,000C) to the exterior surface of parts via an inert gas (e.g., argon or nitrogen).

isostaticity

19 [The decision in issue] states that collusive agreements were implemented on the isostatic graphite market by regular multilateral meetings at four levels: patents-wipo Heat is transferred to and from the 'heat exchanger unit' at different portions of the hot isostatic pressing cycle.

Joining materials

In hot isostatic pressing, much higher pressures are possible (100-200MPa) and therefore surface finishes are not so critical, finishes of 0.8m RA and greater can be used. A further advantage of this process is that the use of uniform gas pressurisation allows complex geometries to be bonded, as against the generally simple butt or lap joints possible with uniaxial pressurisation.

New Insights into the Brill Transition in Polyamide 11

The thermal stability of several crystal polymorphs in polyamide 11 (PA11) and polyamide 6 (PA6) has been investigated by means of in situ X-ray experiments. In the case of PA11, δ′ and α′ phases display a Brill transition far below the melting point. Both phases transform into a (pseudo)-hexagonal HT δ phase above 100 C. The latter turns back into the most stable α′ phase upon

Synroc: Australian innovation increases technology

Synroc, an Australian innovation to store nuclear waste, has moved to apply its research knowledge into a detailed engineering project that will see it deliver a fully integrated processing plant to treat the liquid by-product stream from the manufacture of molybdenum

Processing and Mechanical Properties of Ti3SiC2: I,

A series of interrupted hot isostatic press runs have been conducted as a function of temperature (1200 –1600 C) and time (0–24 h). Based on X‐ray diffractometry and scanning electron microscopy, at 1200 C, the intermediate phases are TiC x and Ti 5 Si 3 C x.

Joining materials

In hot isostatic pressing, much higher pressures are possible (100-200MPa) and therefore surface finishes are not so critical, finishes of 0.8m RA and greater can be used. A further advantage of this process is that the use of uniform gas pressurisation allows complex geometries to be bonded, as against the generally simple butt or lap joints possible with uniaxial pressurisation.

Angewandte Chemie International Edition: Vol 59, No 41

Hot isostatic pressing is introduced as easy and fast synthetic access to nitridophosphate phosphors, while providing large‐scale quantities. In particular, the calcium nitridophosphate Ca 2 PN 3 :Eu 2+ was synthesized under medium‐pressure conditions (150 MPa N 2, 1200 C), revealing single crystals with remarkable size (100 μm) and quality.

Hot Isostatic Pressing

Hot Isostatic Pressing Hot isostatic pressing is a sintering process that exerts an isotropic gas pressure on the powder during the heating process and achieves densification by the combined effects of high temperature and high pressure [166]. From: Acta Biomaterialia, 2017

Standex ETG's Spincraft UK: A Key Supplier to Rolls

2020/12/18Our Newcastle UK site offered a combination of spin forming and press forming processes to efficiently produce the cover in difficult to form nickel alloys. Spincraft also played a critical part in supporting ITP Aero at the design stage of manufacturing components within the UltraFan's intermediate pressure turbine structure.

Diffusion Bonding of Nuclear Materials

Diffusion Bonding using Hot Isostatic Pressing (HIP) Hot Isostatic Pressing or HIP, as it is commonly known, is a materials processing technique which involves uniformly heating up the work-load while an inert gas pressure is applied on its surface. The

Tailoring Artificial Mode to Enable Cofired Integration of

During lamination, the stacked thin pieces were molded into one compact unibody by hot‐isostatic‐pressing (HIP) under pressure of 200 MPa at 100 C for 20 min. After organic ingredients burned off at 600 C, the green compact was buried in PZT‐5H powder and sintered in

Exploring Structural Changes, Manufacturing, Joining, and

Over the past decades, intensive research activities have produced several generations of γ‐TiAl‐based alloys, which can be classified according to characteristics such as their chemical composition. [2, 3, 16, 29] For example, typical alloying additions of second‐generation γ‐TiAl‐based alloys include 1–3 at% Cr, Mn, or V for an improved ductility, 2–5 at% of the refractory

isostatic structure

The present invention relates to a method for producing a solid part, comprising, in sequence: a step of weaving a three-dimensional fibrous structure (300), said weaving being carried out with metal braids (301, 302) consisting of a plurality of metal strands mutually twisted about the longitudinal axis of the braid; and a step of performing hot isostatic pressing on said fibrous structure

Materials Science and Engineering A

ysis. Hot-isostatic press (HIP) and heat treatment conditions were conducted according to fine-grain specification in Refs. [4,5]. HIP was utilized in this study to avoid casting pores that would affect the results of tensile and creep tests. The HIP parameters were

Exploring Structural Changes, Manufacturing, Joining, and

Over the past decades, intensive research activities have produced several generations of γ‐TiAl‐based alloys, which can be classified according to characteristics such as their chemical composition. [2, 3, 16, 29] For example, typical alloying additions of second‐generation γ‐TiAl‐based alloys include 1–3 at% Cr, Mn, or V for an improved ductility, 2–5 at% of the refractory

isostatic structure

The present invention relates to a method for producing a solid part, comprising, in sequence: a step of weaving a three-dimensional fibrous structure (300), said weaving being carried out with metal braids (301, 302) consisting of a plurality of metal strands mutually twisted about the longitudinal axis of the braid; and a step of performing hot isostatic pressing on said fibrous structure

Hot isostatic pressing can substantially reduce the volume

Hot-Isostatic Pressing GeoRoc's Hot-Isostatic Pressing (HIPing) technology is potentially an exciting alternative treatment option for ILW wastes. HIPing is an existing method used to densify and consolidate materials by applying isostatic pressure at an elevated temperature in a pressure vessel.

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