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Thermal Conductivity of Pure Nickel Anti-Seize Lubricating Compound

The Measurement Platform-2 (MP-2) is an advanced meter with unique selection of transient thermal conductivity sensors for a variety of applications, with a focus on primary measurements. The transient thermal conductivity sensors share similar principles of operation. The sensor wire is heated using a constant current source (q) and the temperature rise is recorded by monitoring the change in electrical resistance of the wire (THW and EFF) or by resistance temperature detector device (TLS). For samples of high thermal conductivity, resistance increases more slowly over time; for samples of low thermal conductivity, resistance increases more quickly over time.

Thermtest MP-2 Measurement Platform Portable Meter

Picture 1. Thermtest MP-2 Thermal Conductivity Meter

Thermal conductivity MP-2 users benefit from the convenience and accuracy gained when using primary testing methods. The MP-2 controller auto-detects the connected sensor and loads corresponding testing parameters. Measurements are easily performed with the smart on-board software and transferred to computer with an included Windows utility program.

TLS 100mm Sensor

Thermtest TLS-100 mm sensor

Picture 2.Thermtest TLS 100 mm sensor for use with the MP-2 portable meter.

The TLS 100mm sensor is one of the many sensors offered with the Thermtest Portable Measurement Platform (MP-2). This sensor offers simple yet accurate measurements of soils, pastes, powders, and solids from 0.1 to 5 W/m/K via the transient line source method. The TLS 100mm adheres with an internationally recognized standard of testing by complying with ASTM D5334-22 and IEEE 442-1981. The TLS 100mm has a 5% accuracy and a 2% reproducibility of measurement, making it a highly accurate and precise instrument for measuring the thermal conductivity of soils, pastes, powders, and solids.

Thermal Conductivity of Pure Nickel Anti-Seize Lubricating Compound

Pure nickel anti-seize lubricating compound is a type of paste used for protection of metal parts against seizure, galling, and corrosion. This compound can be used at high temperatures and extreme pressures. Some common applications of anti-seize compound include use on stainless steel pipe fittings and steam generators. This compound protects metal parts at extreme temperatures, up to 2400°F. The protection offered at high temperatures is related to the ability to pull heat away from machine parts, also referred to as the ability to conduct heat. This thermal conductivity can be measured with the Thermtest TLS 100mm sensor.

For this experiment, pure nickel anti-seize lubricating compound was put into a 100mL graduated cylinder, and the TLS 100mm sensor was then inserted into the cylinder. The thermal conductivity of the compound can then be measured with a high degree of accuracy.

100mL graduated cylinder and anti-seize compound

Figure 1: a) 100mL graduated cylinder and anti-seize compound b) MP-2 handheld with TLS 100mm needle and graduated cylinder filled with anti-seize compound

MP-2 handheld with TLS 100mm needle

Figure 2: MP-2 handheld with TLS 100mm needle inserted into graduated cylinder filled with nickel anti-seize compound, held in place by a clamp

Table 1: Results of measuring nickel anti-seize compound with the TLS 100mm.

Average Thermal Conductivity (W/m·K) Standard Deviation (W/m·K)
0.391 0.007

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