Selection of a thermal bonding agent for temperatures below 1 K

Anderson, A. C.; Peterson, R. E.

doi:10.1016/0011-2275(70)90015-9

Cited by 51 publications

(13 citation statements)

References 8 publications

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“…The thermal resistance is about (17/P)K4/W for such a joint. 5 The self-heating then causes a temperature rise of the order of 4 J.LK at 60 mK, increasing to about 50 J.LK at 2S mK.…”

Section: Q=123cjtanilv2 (Pw) mentioning

confidence: 99%

Studies of a Glass-Ceramic Capacitance Thermometer between 0.025 and 2.4 K

Lawless

Radebaugh

Soulen

1971

Review of Scientific Instruments

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Capacitance measurements from 0.025 to 2.4 K are reported for capacitance thermometers (made from an SrTiO3 glass-ceramic crystallized at 1100 and 1203°C), two of which were the ones reported in the previous article. It was found that the 1200-type thermometer has a useful thermometric range down to 0.06 K and a linear C-T region down to 0.5 K. The 1100-type thermometer has a useful range down to 0.110 K and a linear region down to 1.1 K. The measured data do not appear to be influenced by self-heating or adiabatic correction effects. Both thermometers display an unexpected increase in capacitance with decreasing temperature below their monotonically decreasing ranges. The 1100-type thermometer displays the more pronounced increase, with C∝T−1 from 0.100 to 0.025 K. It is argued that this T−1 behavior is due to the onset of an ultralow temperature phase transition in the glass crystallized SrTiO3, and the possibility of using this effect to achieve adiabatic depolarization cooling is discussed.

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“…The thermal resistance is about (17/P)K4/W for such a joint. 5 The self-heating then causes a temperature rise of the order of 4 J.LK at 60 mK, increasing to about 50 J.LK at 2S mK.…”

Section: Q=123cjtanilv2 (Pw) mentioning

confidence: 99%

Studies of a Glass-Ceramic Capacitance Thermometer between 0.025 and 2.4 K

Lawless

Radebaugh

Soulen

1971

Review of Scientific Instruments

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“…Both the conductance through the thin layer of Stycast [7] and the Kapitza conductance at the boundary [8] should be negligible compared with the graphite conductance. The measured conductance can therefore be taken to be that of the bulk graphite alone.…”

mentioning

confidence: 99%

A replacement for AGOT graphite?

Woodcraft

Duncan

Hastings

2003

Physica B: Condensed Matter

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Pitch bonded graphites are among the best known thermal insulators at sub-Kelvin temperatures. At higher temperatures, however, they are good conductors. Graphite supports can therefore be used to allow a relatively rapid cool-down of structures which must be thermally isolated when cold. The low temperature conductivity of graphites varies by many orders of magnitude depending on the manufacturing process. AGOT graphite is known to be a very good insulator, but is no longer commercially available. We suggest a replacement, and present thermal conductivity measurements demonstrating its suitability.

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“…[14]. The thermal coupling 1=G abs ¼ 1=G K þ 1=G v between the absorber and the Si chip is due to the Kapitza thermal contact resistance G K ¼ 1:6 Â 10 À3 T 3 A assuming a contact area A ¼ 4 mm 2 , plus the thermal conductivity of the varnish G v ¼ 105 mW=K [15]. The heat capacities C LiF ¼ 0:19 nJ=K and C SiþTES ¼ 11 pJ=K at T c ¼ 155 mK are calculated from the Debye law [16].…”

Section: Methodsmentioning

confidence: 99%