Method of producing three dimensional assembly of particles in ordered arrays
US6325957A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1999 |
| Grant date | Dec 4, 2001 |
| Priority date | — |
| Expiry date | Nov 30, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2017/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of producing three dimensional ordered arrays of particles. The method may be used for the preparation of nanocomposite materials with highly periodic structures. More particularly the invention provides a method of producing three dimensional arrays based on applying a controlled oscillatory motion to settling dispersions of colloid particles. The controlled oscillatory motion is characterized by G=A.omega..sup.2 /g, wherein g is the gravitational constant, A is the displacement and .omega. is angular frequency. G is maintained in the desired range by varying values of A within an effective range of displacements and .upsilon. within an effective range of frequencies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.