Abstract:
Method of antireflection and scratch-resistant treatment of a synthetic sapphire material where the acceleration voltage of the ions is between 5 kV and 1000 kV and is chosen in order to create an implanted layer having a thickness equal to a multiple of 100 nm; the microwave-induced annealing temperatures in the implanted surface are between 800° C. and 2000° C. with annealing times of between 1 and 1000 seconds. Synthetic sapphire materials are thus advantageously obtained where the reflection on the treated face is reduced by at least half while maintaining a hardness of greater than or equal to 8.
Abstract:
A method of treatment using a beam of singly- and multiply-charged gas ions produced by an electron cyclotron resonance (ECR) source of a glass material in which —the ion acceleration voltage of between 5 kV and 1000 kV is chosen to create an implanted layer of a thickness equal to a multiple of 100 nm; —the ion dose per surface unit in a range of between 1012 ions/cm2 and 1018 ions/cm2 is chosen so as to create an atomic concentration of ions equal to 10% with a level of uncertainty of (+/−)5%. Advantageously this makes it possible to obtain materials made from glass that is non-reflective in the visible range
Abstract:
The present invention provides a method for producing ionic liquids without the use of a volatile solvent and/or water. In some embodiments, methods of the invention allow a continuous process for producing ionic liquids.
Abstract:
Thin film composite electrolyte structures are disclosed that are preferably ionically conductive but not electronically conductive and are therefore suitable for use in electrochemical cells, such as secondary batteries based on sodium and sulfur. Vehicles including the electrochemical cells are also disclosed.
Abstract:
This invention is directed to electrodialysis equipment particularly to components comprising the ion exchange membranes. These membranes are fabricated with a polymeric macroporous surface as contrasted to the prior art microporous ''''gel'''' type membranes. The macroporous membrane surface or layer lessens the tendency for membranes especially the anion selective type to foul when employed in the electrodialysis of solutions containing fouling constituents. The macroporous membranes are obtaining by polymerizing the liquid monomers in the presence of a nonpolymerizable solvent pair or diluent comprised of both a ''''good'''' and a ''''poor'''' solvent, said solvent characterized with respect to the solvents ability to swell the cross-linked polymer that is formed.
Abstract:
A LEAD ALLOY ANODE WITH IMPROVED RESISTANCE TO CORROSION IS PROVIDED FOR SULFATE ELECTROLYSIS WHICH ANODE CONSISTS ESSENTIALLY BY WEIGHT OF NOT MORE THAN 5% THALLIUM, NOT MORE THAN 1.8% TIN, UP TO 0.2% COBALT AND THE REMAINDER LEAD AND INCIDENTAL IMPURITIES. FURTHER IMPROVEMENT RESULT OF THE CAST ALLOY ANODE IS "HOT WORKED" BY ROLLING THE ANODE TO LESS THAN ONE-QUARTER ITS ORGINAL CAST THICKNESS WHILE MAINTAINING THE TEMPERATURE BETWEEN 200*-300*C.
Abstract:
A solid state electric cell having a mobile oxidant such as iodine in the cathode, a solid state electrolyte and a suitable anode containing a material which is capable of reducing the mobile oxidant. The electrolyte contains dispersed therein a material capable of reacting with the mobile oxidant preventing it from reaching the anode. For example, silver can be dispersed in the electrolyte of the cell containing mobile iodine in the cathode such that AgI will be formed dispersed throughout the electrolyte during storage.
Abstract:
THIS INVENTION IS DIRECTED TO INCREASING THE CURRENT EFFICIENCY OF THE CATION EXCHANGE MEMBRANE LOCATED NEXT TO THE CATHODE IN A THREE CHAMBER CELL FOR THE ELECTROLYTIC CONVERSION OF AN ALKALI METAL SULFATE FOR USE IN THE REMOVAL AND RECOVERY OF SULFUR DIOXIDE CONTAMINANTS FROM FLUE GASES. AFTER THE REMOVAL OF SAID SULFUR DIOXIDE CONTAMINANT FROM FLUE GAS, CARBON DIOXIDE IS INTRODUCED INTO THE CELL''S CATHOLYTE SOLUTION BY CONTACTING CATHOLYTE SOLUTION WITH AT LEAST A PORTION OF THE SAID TREATED FLUE GAS AT ANY POINT IN THE CATHOLYTE SYSTEM, PREFERABLY BY RECYCLING THE CATHOLYTE SOLUTION BETWEEN THE CELL''S CATHODE COMPARTMENT AND A CARBONATION TOWER.
Abstract:
Hydrazine is produced in a two chamber electrolytic cell with anode and cathode chambers separated by an ion exchange membrane. When using an anion exchange membrane, ammonia and nonaqueous solvent are fed to the cathode compartment and hydrazine and solvent are collected from the anode compartment. When using a cation exchange membrane ammonia and nonaqueous solvent are fed to the anode compartment while hydrazine is also removed from the anode compartment. Similarly, alkyl hydrazines can be produced by feeding a lower alkyl amine instead of ammonia.
Abstract:
AN INSTRUMENT FOR MEASURING THE CONCENTRATION OF A WEAKLY WATER-IONIZABLE GASEOUS COMPONENT SUCH AS CARBON DIOXIDE WHICH MAY BE CONTAINED IN AN AMBIENT ATMOSPHERE. SUCH DEVICE IS INDEPENDENT OF THE TEMPERATURE AND TOTAL PRESSURE OF THE ATMOSPHERE AND IS BASED ON THE MEASURABLE CHANGES OCCURRING IN THE ELECRICAL PROPERTIES OF AN ION-EXCHANGE MATERIAL WHEN IN THE PRESENCE OF THE PARTICULAR GAS TO BE MEASURED.