Material analysis by ultrasonic atomic force microscopy

C. Miyasaka, L. Jia, B. R. Tittmann

Research output: Contribution to journalConference articlepeer-review


Spray-dried ceramic powders (e.g., Al2O3) are composed of a plurality of granules, each of which, includes ceramic particles and organic binders. It is assumed that the binders become concentrated in the surface layer of the granule in accordance with its type or its volume mixed into a ceramic portion of the granule. However, evidence to prove the assumption was limited because conventional microscopes were not able to clearly visualize the segregation. This paper presents a technique for imaging detailed structure of the spray-dried ceramic powders with the ultrasonic-atomic force microscope (U-AFM). The distribution of binder vis-a-vis Al2O3 particles is highly resolved with good contrast. The distribution was confirmed by nano-indentation. Thus, the U-AFM, is shown to be a useful diagnostic tool for the development of approaches to spray-dried process evaluation.

Original languageEnglish (US)
Pages (from-to)BB181-BB185
JournalMaterials Research Society Symposium - Proceedings
StatePublished - 2000
EventGranular State - San Francisco, CA, United States
Duration: Apr 24 2000Apr 27 2000

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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