graphite susceptor structure for inductively heating

Fabrication of 3D monolithic graphene

2020/12/19Graphene was grown in an inductive heating CVD (ICVD) system, based on the remote heating of a graphite susceptor sample holder placed inside the quartz reactor chamber. To ensure accurate temperature regulation, the power supply implements a closed-loop control with a type-K thermocouple buried inside the susceptor.

Susceptor Patents and Patent Applications (Class 219/634)

Search for Susceptor Patents and Patent Applications (Class 219/634) Filed with the USPTO Abstract: Disclosed is a crucible that exhibits stable evaporation efficiency and durability with respect to Al, is used in an evaporation source of an electron-beam evaporator, and includes a storage unit, which includes a wall and a bottom and in which a deposition material is placed, and a wetting

Thermal transportation simulation of a susceptor

A new susceptor structure with a ring groove on the conventional column-shaped graphite susceptor is proposed for the vertical and induction heating MOCVD reactor, aimed at dividing the inner heat of susceptor into two parts, one of which accumulates on the upside and the other downside of the groove. The shape of the ring groove that changes the directions of heat conduction in the susceptor

Induction heating graphite susceptor with RF IGBT Heater

Induction heating graphite susceptor for glass reflow for X-ray tubes Objective Heat graphite susceptor for glass reflow in the manufacturing of x-ray tubes Material Glass disc 0.98 x 0.12 " (25 x 3mm), graphite susceptor, stainless steel holder, Glass bell jar 5.9

Induction Heating Calculation Tool

Heating Goal Material Data Material Please, select Aluminum Beryllium Copper Brass, Medium Leaded C34000 Brass, Naval C46400 Cobalt Copper Graphite Graphite - Alumina Coating Inconel, 718 Steel Invar-36 Molybdenum Silcon Carbide Silver Steel, 4140 Quenched, 55 HRC Steel, Mild (0.23% Carbon) Steel, Stainless Titanium Ti-6Al-4V (Grade 5), Annealed Tungsten

Maximum Joule heat by tubular susceptor with critical

2009/1/30The susceptor is often made of graphite because it offers an ideal resistivity for induction heating [5, 9, 10], but figure 6 shows that stainless steel can also obtain Joule heat similar to that of graphite when the tubular susceptor has a critical thickness.

FCT Systeme

Due to their induction heating, inductive heated high-temperature furnaces are particularly used when large furnace volumes and working temperatures of up to 2500 C or more are needed. The constant release of energy of the induction-heated graphite susceptor enables the achievement of excellent uniformity of temperature even at temperatures of more than 2500C.

SUSCEPTOR ELEMENTS FOR HIGH TEMPERATURE

article{osti_4812537, title = {SUSCEPTOR ELEMENTS FOR HIGH TEMPERATURE INDUCTION HEATING}, author = {Hasko, S and Parker, H S}, abstractNote = {Powdered iridium and tungsten, and sheet tungsten, tantalum, molybdenum, and 80 platinum-20 rhodium alloy were employed in the fabrication of small susceptors for 2300 deg C in air and in excess of 2600 deg C in helium were

Induction heater for graphite

2015/11/26Graphite has quite high resistivity, relativivly seen and therefore it will be difficult to induce sufficient currents for heating an object made from graphite. Actually, Graphite is an excellent material for induction heating because of its high resistivity and is often used as a susceptor material to transfer heat (by conduction) to other non conducting materials.

The induction heating of pyrolytic graphite

Using a pyrolytic graphite susceptor in this way, sizable systems can be heated to high temperatures without any additional thermal insulation. The larger the diameter of the susceptor, the lower the frequency which can be used for efficient coupling, and thus the larger the temperature difference which can be established across the susceptor wall.

Materials and Products Made of Graphite and Carbon Fiber

Graphite does not melt but sublimes at about 3,900 K. In air graphite is resistant to temperatures up to about 750 K. Density T h e t or icald ns y f monocrystalline graphite is 2.26 g/cm 3. The density of artificial graphite is typically 1.5 up to 1.9 g/cm 3 and 2.1 g

Vacuum chamber for induction heating and melting

For example, if a graphite susceptor is used, graphite dust may find its way into these spaces and become potential contaminants for future induction melting processes. Therefore there is the need for a vacuum chamber for induction heating and melting applications that is compact in size and does not require the use of electromagnetic shunts in the vacuum chamber.

Graphite Susceptor induction heating

Graphite Susceptor induction heatingInduction heating is often used in the heat treatment of metal items. The most common applications are induction hardening of steel parts, induction soldering/brazing as a means of joining metal components and induction

Maximum Joule heat by tubular susceptor with critical thickness on induction heating

J. Phys. D: Appl. Phys. 42 (2009) 045509 JSParket al Figure 2. Scheme of a water calorimeter for measuring Joule heat. Figure 3. Change in Joule heat with the vertical position of the susceptor (G: graphite, S: stainless steel). The Joule heat was normalized to the

Numerical Study of Heating Structure in Cold

On the traditional heating structure of MOCVD reactor, the temperature distribution of substrate is nonuniform, which goes against the film growth. This paper focuses on the numerical calculation of the heating structure, by using SiC and graphite as the materials of the new susceptor and coupling with multifields. By adjusting the position and size of each of the ring body of graphite in the

Temperature Uniformity of Wafer on a Large

CHIN.PHYS.LETT.Vol.29, No.3(2012)030701 der the susceptor, the temperature uniformity of the formerismuchlowerthanthelatter. By using the above-mentioned method, the heat-ing structures for 6-inch and 8-inch wafers are opti-mized, respectively. Figures7(a

RF Heating coil construction for stack of susceptors

Graphite susceptor structure for inductively heating semiconductor wafers 1976-09-14 Berkman et al. 219/10.49R 3845738 VAPOR DEPOSITION APPARATUS WITH PYROLYTIC GRAPHITE HEAT SHIELD 1974-11-05 Berkman et al. 219/10.49 3699298 Briody

Induction Heating: What It Is, How it Works

Susceptor Heating Pre-Heating for Welding Power Supplies 10-20-30 kW 60 kW Transithermic Series Machines Vacuum Furnaces Bell Jars Pre-Heating for Welding Brazing Forging Heat Treating Melting Epoxy Bonding Heat Staking Deck/Bulkhead Straightening

Maximum Joule heat by tubular susceptor with critical thickness on induction heating

J. Phys. D: Appl. Phys. 42 (2009) 045509 JSParket al Figure 2. Scheme of a water calorimeter for measuring Joule heat. Figure 3. Change in Joule heat with the vertical position of the susceptor (G: graphite, S: stainless steel). The Joule heat was normalized to the

A 25 kW, 25 kHz Induction Heating Power Supply for

IH is one of the preferred methods for noncontact heating of the susceptor. The paper aims to investigate the characteristics of L-LC RI for an application demanding a 25 kW, 25 kHz IH power supply to heat graphite susceptor to 1200 C in a MOVPE system for

MEDICAL APPLICATIONS For Precision Induction Heating

Small stainless steel orthodontic parts, silver braze alloy, no flux, 3 1/ 8" (79.3mm) graphite susceptor disk with 1" (25.4) center hole and bell jar made of pyrex or quartz 1300 F(704 C) 165 kHz EQUIPMENT • Ambrell 3 kW induction heating system and 0.5

7 Uses for an Induction Heating Machine + How to Make

7 Uses for an Induction Heating Machine + How to Make One: In this instructable, I will show you how to make an induction heating machine and 7 different applications for it. Induction heating has many practical applications and making one is incredibly simple.

Susceptor Patents and Patent Applications (Class 219/634)

Search for Susceptor Patents and Patent Applications (Class 219/634) Filed with the USPTO Abstract: Disclosed is a crucible that exhibits stable evaporation efficiency and durability with respect to Al, is used in an evaporation source of an electron-beam evaporator, and includes a storage unit, which includes a wall and a bottom and in which a deposition material is placed, and a wetting

induction heating graphite crucible

Induction heating graphite susceptor for glass reflow for X-ray tubes Objective Heat graphite susceptor for glass reflow in the manufacturing of x-ray tubes Material Glass disc 0.98 x 0.12 " (25 x 3mm), graphite susceptor, stainless steel holder, Glass bell jar 5.9

Graphite

The thermal processing of graphite is not a simple operation, often requiring zoned induction heating coils and multiple output power supplies to manage ultra-high temperatures. Maintaining the desired temperature profile within the susceptor is critical in achieving optimum productivity.

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