2results about How to "Increase ionization rate" patented technology

The invention discloses a time-of-flight mass analysis device, which comprises an ionization acceleration region for generating ions, screening the ions according to the initial energy and initial position of the ions and accelerating the ions to move towards a field-free region; the field-free region is used for providing free motion space with enough distance for ions; the reflection area is located at the tail end of the field-free area and used for reflecting ions to the signal detection area; and the signal detection area is used for detecting ion types. The ionization acceleration area of the device adopts a voltage driving mode of repulsion pulses and introduction of the pulses to reduce the initial space dispersion and initial energy dispersion of ions, meanwhile, the ionization probability of molecules is increased, and the resolution and sensitivity of time-of-flight mass analysis can be improved.

The application discloses a MoCN-Cu self-lubricating composite coating which is composed of a MoN adhesive layer, a MoCN gradient layer and a MoCN-Cu functional layer, and has a phase composition of polycrystal wrapping amorphous carbon structure and free Cu metal composite phase; the composite coating is prepared by arc ion plating deposition on a substrate matrix, and is applied to engine parts, matching parts, servo systems and attitude control systems. In the composite coating, the MoN adhesive layer, the MoCN gradient layer and the MoCN-Cu functional layer are sequentially arranged, and the phase composition is controlled to be polycrystal wrapping amorphous carbon structure and free Cu metal composite phase, so that the wear-resistant high-load-bearing performance of MoN is combined with the excellent self-lubricating performance of amorphous carbon material and soft metal phase Cu, a solid MoCN-Cu self-lubricating composite coating with low friction, low wear and high load-bearing is obtained, and the composite coating is suitable for use in a high friction and wear environment; and the preparation method is suitable for industrial production.