Our mechanics and tribology group started in 1986 when Professor Talke joined CMRR from IBM. We are one of the five groups at the Center for Magnetic Recording Research at University of California, San Diego.
The focus of Professor Talke’s research is in the areas of tribology and mechanics of the head disk interface. His present research includes a) modeling and optimization of thermal flying height control sliders and touchdown sensors, b) nano and mems technology studies, c) investigation of heat assisted magnetic recording and patterned media, and d) developments of high precision instrumentation for nano technology applications. A recent area of interest and research is related to the design of biomedical devices.
Recent and on-going research projects in the head disk and tribology area:
- Effect of voltage biasing of the head disk interface
- Simulation of thermal asperity sensors (touch down sensors) for control of flying height of thermal flying height control sliders (TFC).
- Hydrocarbon contamination of the head disk interface
- Lubricant transfer from disk to slider using molecular dynamics simulation.
- Investigation of fretting wear of the dimple/gimbal interface in hard disk drive suspensions.
- Investigation of dual stage co-located and suspension-based dual stage actuators.
- Active flying height control of thermal flying height control sliders using feed forward control based on the contact sensor signal.
- Development of new and improved lubricants for HAMR and methodology to study thermal degradation of HAMR lubricants.
- Modeling of time-dependent flying height change of TFC sliders as a function of time-dependent current change.
- Simulation and optimization of TFC sliders with single and dual heaters in HAMR and conventional magnetic recording.
- Investigation of thermal erasure due to head/disk contacts in hard disks.
- Analysis of contamination of hard disk drives by air-borne long chain organic contaminants.
- Investigation of carbonless overcoats.
- Input shaping for dual stage actuators.
- Simulation of bit patterned media and planarization of bit patterned media.
Recent and on-going research projects in the medical device technology area:
- Use of 3-D printing to manufacture a printed and disposable endoscope
- Use of 3-D printing to manufacture biodegradable stents
- Transducer development for measuring intra-ocular pressure in the human eye (glaucoma)
- Instrumentation development to measure middle ear dimensions (stapedectomy)