Vapor pressure above ice at temperatures below 170 K
نویسندگان
چکیده
منابع مشابه
Deposition - mode ice nucleation reexamined at temperatures below 200
The environmental chamber of a molecular beam apparatus is used to study deposition nucleation of ice on graphite, alcohols and acetic and nitric acids at temperatures between 155 and 200 K. The critical supersaturations necessary to spontaneously nucleate water ice on six different substrate materials are observed to occur at higher supersaturations than are theoretically predicted. This contr...
متن کاملNucleation and droplet growth from supersaturated vapor at temperatures below the triple point temperature.
In 1897 Ostwald formulated his step rule for formation of the most stable crystal state for a system with crystal polymorphism. The rule describes the irreversible way a system converts to the crystal with lowest free energy. But in fact the irreversible way a supercooled gas below the triple point temperature Ttr.p. crystallizes via a liquid droplet is an example of Ostwald's step rule. The ho...
متن کاملDensity and index of refraction of water ice films vapor deposited at low temperatures
The density of 0.5–3 mm thick vapor-deposited films of water ice were measured by combined optical interferometry and microbalance techniques during deposition on an optically flat gold substrate from a capillary array gas source. The films were of high optical quality with an index of refraction of 1.2960.01 at 435.8 nm, a density of 0.8260.01 g/cm, and a porosity of 0.1360.01. In contrast to ...
متن کاملCharacterization of various low-k dielectrics for possible use in applications at temperatures below 160 °C
This study aims at the testing of various low-k insulators deposited at temperatures below approximately 160 C for possible application in temperature-limited copper interconnects (e.g., in plastic electronics). Various polymers were tested such as the well-known poly(methyl methacrylate) (PMMA), a Polyhedral Oligomeric Silsesquioxane (POSS) based copolymer partially fluorinated (POSS-F) and th...
متن کاملVapor pressure of ionic liquids at low temperatures from AC-chip-calorimetry.
The very low vapor pressure of ionic liquids is challenging to measure. At elevated temperatures the liquids might start to decompose, and at relatively low temperatures the vapor pressure becomes too low to be measured by conventional methods. In this work we developed a highly sensitive method for mass loss determination at temperatures starting from 350 K. This technique is based on an alter...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2003
ISSN: 0094-8276
DOI: 10.1029/2002gl016183