The following equipment is available to users of the Carleton Laboratory. For further details, click on the tab of the testing machine.

The Columbia Nano Initiative Shared Laboratory Facilities (http://cni.columbia.edu/shared-labs) have additional materials characterization facilities that may be used be researchers.

CARLETON LAB SERVICE CENTER RATES

Click the button below to view the rates for the Carleton Lab Service Center (Requires UNI login).

Columbia Nano Initiative

For more information about the shared labs of the Columbia Nano Initiative, please click on the button below.

Gemini II Rheometer

Gemini II Rheometer

An advanced rheometer system incorporating Rotonetic 2 drive, patented, adaptive control technology which is optimized for both strain controlled and stress controlled operation.
Key technical features include a broad torque range which extends to 200mNm and makes the Gemini suitable for a wide range of applications in research and product development. A new high resolution torque mapping system applied to Bohlin's inherently low bias air bearing technology allows low torques to be set extremely accurately.
The Gemini system is available with the full range of EasySwap™ temperature controllers which include fully integrated peltier devices, a forced gas oven with optional liquid nitrogen cooling and electrical heating. This allows the Gemini II to be quickly and easily configured to allow testing on a full range of materials and applications including polymer melts, composites, fluids and semi-solids.
The Rotonetic 2 drive enables testing in all conventional strain and stress controlled modes including stress relaxation, creep and viscometric modes. Oscillation testing is available in either direct strain or stress controlled modes. Direct strain operation of oscillation allows preset strain amplitudes to be imposed upon the test sample without iteratively adjusting the stress on a cycle-by-cycle basis. Partial wave sampling enables rheological data to be gathered using just part of a full oscillation cycle. When used in conjunction with direct strain control, partial wave sampling makes low frequency testing far less time consuming and therefore more practical.

SPECIFICATIONS

  • Torque range: 0.05µNm to 200mNm Controlled stress/rate viscometry. Controlled stress/strain oscillation.
  • Torque resolution: Better than 1nNm Position resolution: 50 nano radians
  • Frequency range: 1 micro Hz to 150Hz
  • Controlled speed range (CR mode): 0.01 milli rad/sec to 600 rad/sec
  • Measurable speed range (CS mode): 10 nano rad/sec to 600 rad/sec
  • Normal force NI measurement range: 0.001 to 20N (50N option)
  • Step change in strain: <10ms.
  • Temperature range (dependent on control used): -150°C to 550°C
  • Temperature Control:
    • ETO system: -15°C to 300°C
    • Melts oven: ambient to 450°C
    • Peltier plate: -30°C to 200°C
    • Peltier cylinder: -20°C to 180°C
    • ETC: ambient to 550°C
    • Low temperature extension to ETC: -150°C to 550°C

 

RESERVATION REQUESTS

For further information contact Huiming Yin at +1.212.851.1648

Horiba Glow Discharge Spectrometer

Horiba Glow Discharge Spectrometer

The Glow Discharge Spectrometer can test for both the surface and bulk composition, with high sensitivity to all elements (including the gaseous elements), for almost all solid materials, including: metals, metal alloy coatings, semiconductors, polymer coatings, glass, ceramics, etc. It is capable of cooling the sample with a recirculating water system, which allows for temperatures close to zero degrees Celsius, making it possible for the analysis of thin films, such as polymers, which may melt at higher temperatures. In addition, the Image software allows spectrum fingerprinting of a sample or a thick layer in less than 2 minutes.

SPECIFICATIONS

  • Manufacturer: Horiba Scientific, USA
  • Model: GD Profiler HR
  • Sputtering Rate: 10-150 nm per second representing 30-500 atomic layers per second
  • Focal Length: 1.0 m (provides optical resolution of 14 pm with simultaneious analysis of up to 60 channels)
  • Capable of making 1-10 measurements per element per atomic layer
  • Coverage from 110 to 620 nm

 

RESERVATION REQUESTS

For further information contact Huiming Yin at +1.212.851.1648

Leco DH603 Hydrogen Analyzer

Leco DH603 Hydrogen Analyzer

Hydrogen determinations are delivered quickly and precisely with the DH603 using diffusible and total hydrogen measurements. This robust instrument determines the amount of total hydrogen (or diffusible hydrogen) present in ferrous alloys. A small footprint, user-friendly operating software, increased instrument safety, and reliability are all part of the advanced DH603 design. The DH603 conforms to ISO Method 3690 "Ferritic Steel Arc Weld Metal" as a "Rapid Method" outlined in Sections 5.3.2.3 and 5.4.

SPECIFICATIONS

  • Instrument range: 0.1 to 2500 ppm (for 1 g sample)
  • Precision range: 0.02 ppm or 2% RSD, whichever is greater
  • Readability: 0.001 ppm

 

RESERVATION REQUESTS

This machine is maintained by Carleton Laboratory management. To reserve this machine, please fill out the equipment reservation request form at least two business days before your usage slot.

For further information contact Will Hunnicutt at +1.212.854.3158.

Mastersizer 2000 Particle Analyzer

Mastersizer 2000 Particle Analyzer

The Mastersizer 2000 particle size analyzer has been developed to meet the industry's growing need for global comparability of results, traceability, regulatory compliance, and efficiency in the laboratory. In introducing the Mastersizer 2000 particle size analyzer, Malvern has advanced particle size analysis to the point where it is now a simple, straightforward, and routine task.

SPECIFICATIONS

  • Accuracy and Reproducibility Accuracy:
    ± 1% on the Dv50 using the Malvern Quality Audit Standard.
  • Instrument-to-instrument reproducibility:
    Better than 1% RSD on the Dv50 using the Malvern Quality Audit Standard.
  • Assured reproducibility:
    Software-driven SOPs eliminate user variability and enable global method transfer. All measurement parameters are automatically embedded in the result files and can be critically reviewed by e-mail recipients. Measurements can be replicated by following the same SOP.
  • Broad measuring range:
    Measures materials from 0.02µm to 2000µm.
  • Wide range of sample types:
    For the measurement of emulsions, suspensions and dry powders.
  • Ease of use:
    Fully automated for ease of use. Designed to eliminate user-to-user variability. Reduces training requirements for new users and maximizes deployment of skilled personnel.
  • Flexibility:
    Wide range of sample dispersion units. Rapid changeover between sample dispersion units with automatic configuration. "Plug and Play" cassette system allows simultaneous connection of two sample dispersion units.
  • Regulatory Compliance:
    Full QSpec validation documentation available including compliance with 21 CFR Part 11.
  • User-friendly Software:
    • Software-driven Standard Operating Procedures (SOPs) eliminate user variability. An SOP-creation wizard helps users to create good measurement methods. On-line help and advice on every aspect of performing a measurement available at the click of a button.
    • On-screen instructions lead user through the measurement process. SOPs supplied for routine sample analyzes.
    • Custom Report Designer allows screen layout and printouts to be configured to suit each user.
    • Custom calculator allows the parameters important to your application to be defined.

 

RESERVATION REQUESTS

For further information contact Huiming Yin at +1.212.851.1648.

Netzsch NanoFlash Thermal Diffusivity Analyzer

Netzsch NanoFlash Thermal Diffusivity Analyzer

Determination of thermophysical properties is quick, easy, and cost-effective with the new LFA 447 NanoFlash® Light Flash System. A high-performance Xenon flash lamp takes the place of the laser, which is usually employed for this proven technique. With the integrated sample changer for 4 samples, it is possible to run measurements on several samples automatically. The easily-accessible sample carrier allows short setting periods for test preparation and a high through-put of samples. Unique is the optional scanning device (MTX) for flat samples up to 50 mm x 50 mm for determining differences in the thermal diffusivity over the entire sample surface with a spatial resolution of 100 µm in the x and y directions.

SPECIFICATIONS

  • Temperature range: RT ... 300°C
  • Xenon-Flash-Lamp 10 J/pulse, (adjustable power)
  • Contactless measurement of temperature rise with IR detector
  • Measuring range: 0.01 mm2/s ... 1000 mm2/s (thermal diffusivity)
  • Measuring range: < 0.1 W/mK ... 2000 W/mK (thermal conductivity)
  • Sample dimensions: 10 mm ... 25.4 mm diameter (also 8x8 mm and 10x10 mm, square) 0.1 mm ... 3 mm thickness
  • Sample support for 4 samples
  • Sample holder: metal
  • Sample holder for liquids: aluminum / platinum
  • Atmospheres: air, static
  • MTX Scanning device for 50 mm x 50 mm samples (RT), local resolution 0.1 mm

 

RESERVATION REQUESTS

For further information contact Huiming Yin at +1.212.851.1648.

SPECTROMAXx Spark OES

SPECTROMAXx Spark OES

The SPECTROMAXx stationary metal analyzer is used mainly for material testing in foundries and for incoming and outgoing inspections in the metal industry around the world. It determines all of the elements used in the metal industry, including metal analysis of carbon, phosphorous, sulfur, and nitrogen.

RESERVATION REQUESTS

This machine is maintained by Carleton Laboratory management. To reserve this machine, please fill out the equipment reservation request form at least two business days before your usage slot.

For further information contact Will Hunnicutt at +1.212.854.3158.

TA Instruments DMA 850

TA Instruments DMA 850

The TA Instruments DMA 850 is a cutting-edge dynamic mechanical analyzer capable of measuring elastic and viscoelastic properties of small samples over a wide temperature range. Test fixtures that are currently available are three-point bending, dual/single cantilever, and tensile fixtures.

SPECIFICATIONS

  • Maximum force: 18 N
  • Minimum force: 0.0001 N
  • Force resolution: 0.00001 N
  • Frequency range: 0.001 to 200 Hz
  • Dynamic deformation range: ±0.005 to 10,000 µm
  • Strain resolution: 0.1 nm
  • Modulus range: 103 to 3x1012 Pa
  • Modulus precision:  ±1%
  • Tan δ sensitivity: 0.0001
  • Tan δ resolution: 0.00001
  • Temperature range: -145°C to 600°C
  • Heating/cooling rates: 20°C/min heating, 10°C/min cooling

 

RESERVATION REQUESTS

This machine is maintained by Carleton Laboratory management. To reserve this machine, please fill out the equipment reservation request form at least two business days before your usage slot.

For further information contact Will Hunnicutt at +1.212.854.3158.

TA Instruments Q50 Thermogravimetric Analyzer

TA Instruments Q50 Thermogravimetric Analyzer

The rugged, reliable, and cost-effective TA Instruments Q50 TGA offers exceptional value as a compact, general-purpose thermogravimetric analyzer that typically out-performs competitive research-grade models. Its integral mass flow control, gas switching capability, superb software, and ease-of-use make the Q50 ideal in basic research and teaching.
The heart of the Q50 TGA is the accurate and reliable vertical thermobalance housed in a temperature-compensated environment. It uses the field-proven and industry-standard null-balance principle, which is free from the baseline complications also inherent in competitive designs. The Q50 balance provides the best accuracy and precision in weight change detection from ambient to 1,000°C, low baseline drift, and sensitive, reliable operation over the entire weight range.
An efficient horizontal purge gas system allows accurately metered purge gas to flow directly across the sample, and is expertly integrated into the vertical thermobalance/furnace design. A regulation portion of the gas is also directed through the balance chamber to eliminate backflow, and the combined gases plus any sample effluent exit the system by a side arm. The design minimizes buoyancy effects, and optimizes the removal of decomposition products from the sample area. The digital mass flow controllers improve data quality.

SPECIFICATIONS

  • Maximum sample weight: 1 g
  • Weighing precision: +/-0.01%
  • Sensitivity: 0.1 µg
  • Baseline dynamic drift: < 50 µg from 50 to 1,000°C at 20°C/min
  • Temperature range: Ambient to 1,000°C
  • Isothermal temperature accuracy: +/-1°C
  • Isothermal temperature precision: +/-0.1°C
  • Controlled heating rate: 0.1 to 100°C/min
  • Furnace cooling (forced air, not controlled): 1,000°C to 50°C < 12 min

 

RESERVATION REQUESTS

This machine is maintained by Carleton Laboratory management. To reserve this machine, please fill out the equipment reservation request form at least two business days before your usage slot.

For further information contact Will Hunnicutt at +1.212.854.3158.

TA Instruments TAM Air Isothermal Calorimeter

TA Instruments TAM Air Isothermal Calorimeter

Monitoring the thermal activity or heat flow of chemical, physical and biological processes provides information which cannot be generated with other techniques. Isothermal calorimetry is a powerful technique for studying heat production or consumption and is non-destructive and non-invasive to the sample. The TAM Air offers unmatched sensitivity and long-term temperature stability with flexible sample requirements. The TAM Air is the ideal tool for large scale calorimetric experiments, capable of measuring several samples simultaneously under isothermal conditions. This system is especially well-suited to processes that evolve or consume heat over the course of days and weeks such as cement and concrete hydration, food spoilage, microbial activity and more.
Determining the heat of hydration of cement and concrete is important and traditionally the heat of hydration has been determined by measuring the heat of solution (ASTM C186). More recently, isothermal calorimetry tests using TAM Air are favored because they accurately and reliably measure the heat of hydration (ASTM C1702) and predict the setting behavior of various cement mixtures. The samples tested in the TAM Air are often paste samples, where the cement hydration process can continuously be followed over time; it is also of importance to test not only the cement but also the final mixture of mortar or concrete. This allows for detection of incompatibility between the materials. The mixing effect on the same cement in a paste and in a concrete mixture will also be different as the aggregates will add to the shear forces.
Calorimetry requires little or no sample pretreatment; solids, liquids and gases can all be analyzed. When heat is produced in a sample, isothermal calorimetry measures the heat flow. The sample is placed in an ampoule that is in contact with a heat flow sensor that is also in contact with a heat sink. When heat is produced or consumed by any process, a temperature gradient across the sensor is developed. This will generate a voltage, which is measured. The voltage is proportional to the heat flow across the sensor and to the rate of the process taking place in the sample ampoule. This signal is recorded continuously and in real time. For each sample there is a reference that is on a parallel heat flow sensor. During the time that the heat flow is monitored, any temperature fluctuations entering the instrument will influence both the sample and the reference sensors equally. This architecture allows a very accurate determination of heat that is produced or consumed by the sample alone while other non-sample heat disturbances are efficiently factored out.

SPECIFICATIONS

  • Number of simultaneous samples: 8
  • Operating temperature range: 5°C to 90°C
  • Thermostat stability: +/-0.02°C
  • Maximum sample size: 20 mL
  • Limit of detection: 4 µW
  • Short term noise: < +/-2.5 µW
  • Precision: +/-20 µW
  • Baseline drift over 24 hours: < 40 µW
  • Baseline deviation over 24 hours: < +/-10 µW
  • Baseline error over 24 hours: < +/-23 µW

 

RESERVATION REQUESTS

This machine is maintained by Carleton Laboratory management. To reserve this machine, please fill out the equipment reservation request form at least two business days before your usage slot.

For further information contact Will Hunnicutt at +1.212.854.3158.

Thermo Scientific HAAKE MARS Rheometer

Thermo Scientific HAAKE MARS Rheometer

The HAAKE Modular Advanced Rheometer System allows for a highly flexible testing of fluids and flow, providing accuracy and comprehensive material characterization.

SPECIFICATIONS

  • Manufacturer: Thermo Scientific, USA
  • Model: HAAKE MARS Rheometer
  • Maximum Lift Speed: 0.787 in/s (20 mm/s)
  • Maximum Lift Travel: 9.45 in (240 mm)
  • Normal Force: 0.00225 lbf - 11.24 lbf (0.01 N - 50 N)
  • Dimensions: 23.6 in W x 23.6 in D x 35 in H (600 mm x 600 mm x 890 mm)
  • Air Bearing: 2x radial, 1x axial
  • Rotational Speed Range
    • Min. rotational speed CS (rpm): 10-7
    • Min. rotational speed CR (rpm): 10-8
    • Max. rotational speed (rpm): 4500

 

RESERVATION REQUESTS

This machine is maintained by Carleton Laboratory management. To reserve this machine, please fill out the equipment reservation request form at least two business days before your usage slot.

For further information contact Will Hunnicutt at +1.212.854.3158.

Wilson/Rockwell Hardness Tester

Wilson/Rockwell Hardness Tester

SPECIFICATIONS

  • Manufacturer: Wilson Instruments, an Instron Company
  • Model: A504R
  • Vertical Capacity: 12 in (305mm)
  • Throat Depth: 6.2 in (158mm)
  • Hardness Parameters: Rockwell Regular Scales
  • Standards Compliance: ASTM E18-05 and EN-ISO 6508
  • Preliminary Test: 10 kg
  • Total Test Force: 60 kg / 100 kg / 150 kg
  • Test Cycle Type: Motorized
  • Calibration: ASTM E18 in B and C Scales

 

RESERVATION REQUESTS

This machine is maintained by Carleton Laboratory management. To reserve this machine, please fill out the equipment reservation request form at least two business days before your usage slot.

For further information contact Will Hunnicutt at +1.212.854.3158.

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