Furnace Heating

Atomic resolution, reliable performance

Technical Specs

1500 Series	ETEM	TEM
Max Operating Temperature	800°C	1000°C
Settled resolution at 800ºC	Up to TEM resolution	Up to TEM resolution
Temperature Measurement	Direct Thermocouple	Direct Thermocouple
Tilt Range	Up to ±45° depending on objective pole	Up to ±45° depending on objective pole
Cooling at High Temperatures	Passive Conduction (No Liquid Cooling)	Passive Conduction (No Liquid Cooling)
Furnace Material	Non-Magnetic and Chemically Inert	Non-Magnetic and Chemically Inert
TEM Compatibility	TFS/FEI, JEOL	TFS/FEI

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Features

Overview

Hummingbird Scientific’s in-situ furnace heating holder has been thermally optimized for low power input and minimal sample drift, enabling high temperature experimentation in both ETEM and TEM applications. Its high performance materials and thermal management support rapid image acquisition at atomic resolution and elevated temperatures. Applications:

Phase transformations in materials
High temperature microstructural changes in materials
In-situ studies of gas-solid reactions (with ETEM)
Catalysis materials studies

How It Works

Hummingbird Scientific’s in-situ furnace heating holder uses materials and geometries chosen for the best possible mechanical and thermal performance. Its features include:

Non-magnetic furnace material (critical for aberration-corrected experiments)
Direct thermocouple measurements of sample temperatures
Low thermal drift after stabilization
Closed-loop control software

In addition to a traditional TEM environment, our heating holder is designed to stand up to challenging ETEM experiments. No water cooling is required.

Software

The Furnace Heating Holder includes a stand-alone, USB-compatible heating control box optimized for straightforward and effective control, ramping functions, and data collection. Software features include:

Sample temperature control in both closed-loop and open-loop mode
Full data-logging and display capabilities
High-resolution photo mode

Maintenance Plan

Our furnace heating holder was developed for accuracy and high reliability, but as with all resistive heating elements, occasional service is required after extended use of the heating element. In order to ensure that your holder is available for your research whenever you need it, we offer a optional maintenance plan. By purchasing this plan, you can prevent unexpected service costs and extended downtime. You will also receive free updates to the control software for the duration of the service contract.

Service Contract Features

All service included
Guaranteed quick repair times
Free software updates

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Available For

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Accessories

Accessories available for your heating holder:

High-temperature sample grids

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Featured Research

In-situ TEM Catalysis

One of the most exciting and promising areas of TEM-based research is the in-situ observation of materials interacting with gaseous environments. This research includes studies into the effect of gaseous overpressures on the shape, structure, defects, and electronic activity of a material. It is perhaps most critical to the study of catalysis because it allows researchers to observe on the atomic scale how catalysts respond to their environment while they are active.

Right: Microstructural changes as a function of the gas environment of an Fe catalyst, shown in sequential high-resolution transmission electron micrographs:

(A to C) Size evolution of Fe catalysts after 60 min under H₂ (A), He (B), and Ar (C) at 500°C and 500 mtorr.
(D to F) Series of images from the same two Fe catalyst particles held at 500°C, as the gas overpressure changes from (D) 500 mtorr He to (E) 500 mtorr Ar to (F) 500 mtorr He.
(G to I) Series of images from a larger Fe catalyst particle along a 110 zone axis:
(G) Image taken in 500 mtorr He at 500°C, showing very strong {111} facets. The inset diffractogram confirms the zone axis orientation.
(H) After the introduction of Ar, local degradation of the facets begins.
(I) With further time at 500°C in the Ar environment, the facet has been completely removed.

For all cases, the H₂O with base pressure of 10^-2 mtorr is present. Arrows in (H) and (I) indicate the gradual defaceting features over time.

Reference: A.R. Harutyunyan, G. Chen,T.M. Paronyan, E.M. Pigos, O.A. Kuznetsov, K. Hewaparakrama, S.M. Kim, D. Zakharov, E.A. Stach, G.U. Sumanasekera. “Preferential Growth of Single-Walled Carbon Nanotubes with Metallic Conductivity,” Science 326 (2009) pp. 116–120. Abstract

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Video Spotlight

Catalysis

A high-resolution transmission electron movie of Fe catalyst as a function of gas environment shows Fe particles undergoing reversible shape changes following a switch from He/H₂O to Ar/H₂O gas at 500°C.

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Customization & Service

› Custom Engineering

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Selected Publications

F. F. Abdeljawad. “Microstructural evolution of thin polycrystalline metallic films under extreme conditions,”DOE Technical Report (2019)	Abstract
O. K. Donaldson, K. Hattar, T. Kaub, G. B. Thompson, and J. R. Trelewicz. “Solute stabilization of nanocrystalline tungsten against abnormal grain growth,”Journal of Materials Research (2017)	Abstract
C. A. Taylor, D. C. Bufford, B. R. Muntifering, D. Senor, M. Steckbeck, J. Davis, B. Doyle, D. Buller, and K. M. Hattar. “In Situ TEM Multi-Beam Ion Irradiation as a Technique for Elucidating Synergistic Radiation Effects,”Materials (2017)	Abstract
B. Muntifering, P.-A. Juan, R. Dingreville, J. Qu, and K. Hattar. “In Situ TEM Self-Ion Irradiation and Thermal Aging of Optimized Zirlo,”Microscopy and Microanalysis (2016)	Abstract
B. Muntifering, Y. Fang, A. C. Leff, A. Dunn, J. Qu, M. L. Taheri, R. Dingreville, and K. Hattar. “In situ Transmission Electron Microscopy He+ implantation and thermal aging of nanocrystalline iron,”J. Nucl. Mater (2016)	Abstract
B. Muntifering, R. Dingreville, K. Hattar, and J. Qu. “Electron Beam Effects during In-Situ Annealing of Self-Ion Irradiated Nanocrystalline Nickel,” MRS Online Proceedings Library (2015)	Abstract
B.R. Muntifering, A. Dunn, R.P. Dingreville, J. Qu, K.M. Hattar. “In-Situ TEM He+ Implantation and Thermal Aging of Nanocrystalline Fe,” Microscopy and Microanalysis (2015)	Abstract
C. Ngo, and S. Kodambaka. “In situ Microscopy Studies of Liquid Gallium Droplet Dynamics,” Microscopy and Microanalysis (2014)	Abstract
L. He, J.P. Chu, C.L. Li, C.M. Lee, Y.C. Chen, P.K. Liaw, P.M. Voyles. “Effects of Annealing on the Compositional Heterogeneity and Structure in Zirconium-Based Bulk Metallic Glass Thin Films,” Thin Solid Films (2014)	Abstract
S.M. Kim, S. Jeong, and H.C. Kim. “Investigation of Carbon Nanotube Growth Termination Mechanism by In-situ Transmission Electron Microscopy Approaches,” Carbon Letters (2013)	Abstract
M. Pozuelo, S. Prikhodko, X. Zhang, J. Park, R. Koc, and S. Kodambaka. “In Situ TEM Study of Chemical and Structural Transformation of Carbon Coated Titania Nanoparticles,” Microscopy and Microanalysis (2011)	Abstract
S.M. Kim, C.L. Pint, P.B. Amama, R.H. Hauge, B. Maruyama, E.A. Stach. “Catalyst and catalyst support morphology evolution in single-walled carbon nanotube supergrowth: Growth deceleration and termination,” Journal of Material Resolution (2010)	Abstract
A.R. Harutyunyan, G. Chen, T.M. Paronyan, E.M. Pigos, O.A. Kuznetsov, K. Hewaparakrama, S.M. Kim, D. Zakharov, E.A. Stach, G.U. Sumanasekera. “Preferential Growth of Single-Walled Carbon Nanotubes with Metallic Conductivity,” Science (2009)	Abstract