molten salt corrosion of high density graphite and

An Experimental Test Plan for the Characterization of Molten Salt

• High compatibility with high-temperature materials, alloys, graphite, and ceramics. In this context, two main applications of molten salts as heat transfer fluid are considered: as primary coolants for a heterogeneous fuel reactor core (described in detail in Section 0) and as secondary heat

Numerical simulation of induction heating in FLiNaK

Background: The graphite pebble test section of FLiNaK molten salt high temperature testing loop was designed to study the heat transfer behavior and corrosion behavior between FLiNaK molten salt and fuel pebbles. In graphite pebble test section, the graphite

Infiltration of graphite by molten 2LiF–BeF 2 salt

2017/6/27With the aim of developing neutron moderator and neutron reflector materials for fluoride-salt-cooled high-temperature reactors (FHRs), static infiltration tests were performed on graphite materials in molten 2LiF–BeF2 (FLiBe) salt, which is a potential primary coolant, at 700 C and various pressures. The weight gain ratios of four grades (NBG-18, IG-110, NG-CT-10, and NG-CT-50) of

Molten Salt Reactors

Research on molten salt coolant has been revived at Oak Ridge National Laboratory (ORNL) in the USA with the Advanced High Temperature Reactor (AHTR). This is a larger reactor using a coated-particle graphite-matrix TRISO fuel like that in the GT-MHR (see the information paper on Small Nuclear Power Reactors ) and with molten fluoride (FLiBe) salt as primary coolant.

Molten Salt Corrosion Resistance of Yttria Stabilized

2018/1/30The high temperature corrosion behaviour of yttria stabilized zirconia (YSZ) coated high density graphite (HDG) with and without SiC interlayer was evaluated in LiCl–KCl molten salt at 600 C. The YSZ coated HDG samples without interlayer were tested for 50, 250, 1000 and 2000 h and the YSZ coated HDG samples with SiC interlayer were studied for 50, 500, 2000 and 3500 h durations

In

High temperature was performed on molten salt in a graphite analysis cell in-situ. Our technical approach is to develop the systems, parts, and procedures necessary for the in situ characterization of molten salt interfaces, and to perform such characterization using the systems and procedures that are developed in the Phase II.

Molten Salt Reactor Workshop

High density: Greater neutron moderator capacity ! High irradiation stability: Low dimensional changes! High thermal conductivity, Thermodynamic modeling to understand salt chemistry effect on corrosion! Graphite infiltration! Advanced material studies 38

Corrosion Behavior of Laser Melted Alumina–40 wt%

2016/2/10Plasma sprayed alumina–40 wt% titania (A40T) coatings deposited on high density graphite were laser melted and immersed in molten LiCl–KCl salt for 24 h at 873 K to compare the corrosion behavior of the coatings before and after laser surface treatment. The as

Alloy Attack in Molten FLiNaK

The effects of crucible material choice on alloy corrosion rates in immersion tests in molten LiF-NaF-KF (46.5-11.5-42 mol %) salt held at 850 C for 500 hr are described. Four crucible materials were studied. Molten salt exposures of Incoloy-800H in graphite

High Temperature Corrosion of Advanced Materials

1991/1/30High temperature oxidation of CVD-SiC in CO-CO2 atmosphere (T. Narushima et al.). Reaction of graphite with gaseous silicon monoxide (H. Imai et al.). V2O5-Na2SO4-NaCl molten salt corrosion behaviour of various high temperature structural ceramics (H

Numerical simulation of induction heating in FLiNaK

Background: The graphite pebble test section of FLiNaK molten salt high temperature testing loop was designed to study the heat transfer behavior and corrosion behavior between FLiNaK molten salt and fuel pebbles. In graphite pebble test section, the graphite

Corrosion of Nickel alloys in molten LiCl

Compared to these Ni base alloys, high density graphite and Partially Stabilized Zirconia (PSZ) coating could exhibit better performance in molten LiCl-KCl salt under Cl2 bubbling. Our earlier studies on PSZ coatings on candidate materials tested in molten LiCl

China Invests Big in Clean and Cheap Energy from Thorium

A special project has developed a world-first high density, fine-grain graphite - and has developed the means of industrial production of it. They have also developed a specialized nickel alloy, secured its production and handling in China, as well as solved the difficult problem of fluoride salt corrosion

Numerical simulation of induction heating in FLiNaK

Background: The graphite pebble test section of FLiNaK molten salt high temperature testing loop was designed to study the heat transfer behavior and corrosion behavior between FLiNaK molten salt and fuel pebbles. In graphite pebble test section, the graphite

Alloy Attack in Molten FLiNaK

The effects of crucible material choice on alloy corrosion rates in immersion tests in molten LiF-NaF-KF (46.5-11.5-42 mol %) salt held at 850 C for 500 hr are described. Four crucible materials were studied. Molten salt exposures of Incoloy-800H in graphite

Molten Salt Reactors

Research on molten salt coolant has been revived at Oak Ridge National Laboratory (ORNL) in the USA with the Advanced High Temperature Reactor (AHTR). This is a larger reactor using a coated-particle graphite-matrix TRISO fuel like that in the GT-MHR (see the information paper on Small Nuclear Power Reactors ) and with molten fluoride (FLiBe) salt as primary coolant.

Clean production and utilisation of hydrogen in molten

However, the molten salt approach, like many other high temperature processes, has its own challenges, such as the corrosion of the reactors at high temperatures under the influence of molten salts. 111–114 Moreover, the level of expertise required to conduct

INCINERATION OF TRANSURANIC WASTE IN A MOLTEN SALT

Our calculations were done with a salt composition of 70 % LiF (Li 7 only), 15 % BeF2 and 15 % ThF4 (mole percent), a graphite density of 1.68 g/cm 3, a salt density of 3.328 g/cm3, a temperature of salt and graphite of 900 K and a thermal power 2250 MW

Electrochemical interaction between graphite and molten

2015/9/15The electrochemical interaction between graphite and molten salts to produce carbon nanostructures is reviewed. It is demonstrated that, depending on the conditions, it is possible to electrochemically convert graphite in molten salts to either carbon nanoparticles and nanotubes, metal-filled carbon nanoparticles and nanotubes, graphene or nanodiamonds. The application of metal-filled

Material Corrosion in Molten Salt Reactors

Molten Salt Reactors are a relatively new type of nuclear reactor that use a molten salt such as uranium tetrafluoride as a coolant, with either a dissolved or solid fuel, and a graphite core as a moderator. This type of Generation IV reactor relies on a low pressure

Molten salt corrosion of graphite as a possible way to

2013/5/1Molten salt corrosion of high density graphite and partially stabilized zirconia coated high density graphite in molten LiCl–KCl salt Ceram Int, 38 ( 2012 ), pp. 2803 - 2812 Article Download PDF View Record in Scopus Google Scholar

Corrosion behaviour of carbon materials exposed to

2014/2/1Molten salt corrosion of high density graphite and partially stabilized zirconia coated high density graphite in molten LiCl–KCl salt Ceram Int, 38 ( 4 ) ( 2012 ), pp. 2803 - 2812 Article Download PDF View Record in Scopus Google Scholar

Alloy Attack in Molten FLiNaK

The effects of crucible material choice on alloy corrosion rates in immersion tests in molten LiF-NaF-KF (46.5-11.5-42 mol %) salt held at 850 C for 500 hr are described. Four crucible materials were studied. Molten salt exposures of Incoloy-800H in graphite

Determining oxidation states of transition metals in

article{osti_1777714, title = {Determining oxidation states of transition metals in molten salt corrosion using electron energy loss spectroscopy}, author = {Bawane, Kaustubh Krishna and Manganaris, Panayotis and Wang, Yachun and Sure, Jagadeesh and Ronne, Arthur and Halstenberg, Phillip and Dai, Sheng and Gill, Simerjeet and Sasaki, Kotaro and Chen-Wiegart, Yu-Chen Karen and Gakhar, Ruchi

Numerical simulation of induction heating in FLiNaK

Background: The graphite pebble test section of FLiNaK molten salt high temperature testing loop was designed to study the heat transfer behavior and corrosion behavior between FLiNaK molten salt and fuel pebbles. In graphite pebble test section, the graphite

High

This will offer a lower cost alternative to nickel alloys such as Haynes 230, to form a corrosion resistant infrastructure for handling high temperature molten salts. Setup design and analysis To deploy this new concept, we are building a continuous circulation loop that has a castable cement tank, a graphite pump, piping network, a flow meter and also a castable cement flanged pipe section.

Clean production and utilisation of hydrogen in molten

However, the molten salt approach, like many other high temperature processes, has its own challenges, such as the corrosion of the reactors at high temperatures under the influence of molten salts. 111–114 Moreover, the level of expertise required to conduct

Molten salt corrosion of high density graphite and partially

2012/5/1Corrosion studies were performed on uncoated high density graphite and plasma sprayed partially stabilized zirconia (PSZ) coated high density graphite with NiCrAlY bond coat in molten LiCl–KCl eutectic salt at 600 C for periods of 250 h, 1000 h and 2000 h under inert argon atmosphere.h under inert argon atmosphere.

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