Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/8029
AuthorsMasotta, M.* 
Freda, C.* 
Paul, T. A.* 
Moore, G.* 
Gaeta, M.* 
Scarlato, P.* 
Troll, V. R.* 
TitleLow pressure experiments in piston cylinder apparatus: calibration of newly designed 25 mm furnace assemblies to P = 150 MPa
Issue Date2012
Series/Report no./312-313 (2012)
DOI10.1016/j.chemgeo.2012.04.011
URIhttp://hdl.handle.net/2122/8029
KeywordsPiston cylinder
pressure calibration
low pressure
Subject Classification02. Cryosphere::02.04. Sea ice::02.04.04. Instruments and techniques 
AbstractWe present new pressure calibration experiments demons trating that the piston cylinder apparatus is suit-able for experiments at pressure as low as 150 MPa. Two newly designed 25 mm furnace assembly have been developed and calibrated using two differe nt calibration methods: the NaC l melting curve and the sol-ubility of H2 O in albitic and rhyolitic melts. The NaCl calibration experiments performed in the pressure range 150 –500 MPa yield the pressure correction that has to be applied to the nominal pressure in order to have the equivalent (real) pressure on the sample. This correction varies as a function of the experime ntal pressure as follows: Pcorrection MPaðÞ¼ −0 :115xP nominal MPaðÞþ 78 : 23 The H 2O solubility experiments in albitic and rhyolitic melts con firm the corrections determined using the NaCl calibration method. Moreover, because these experiments are performed at temperatures higher than those used for NaCl calibration, they demonstrate that the pressure correction is not affected by temperature in the range 800– 1000 °C. The accuracy of the pressure estimate associated wi th the calibration methods is ± 25 MPa. The major advantage of using the new assemblies is that low pressure experiments, which require rapid heating and quenching rates (e.g. volcanic and hydrothermal systems), can be performed with the same ease and precision as standard high pressure experiments for which piston cylinder is routinel y used.
Appears in Collections:Papers Published / Papers in press

Files in This Item:
File Description SizeFormat 
Masotta et al 2012b.pdfmain article634.52 kBAdobe PDFView/Open    Request a copy
Show full item record

Page view(s)

399
checked on Apr 22, 2017

Download(s)

78
checked on Apr 22, 2017

Google ScholarTM

Check

Altmetric