NIMS Materials Database

NIMS Materials Database

The NIMS Materials Database (MatNavi) aims to contribute to the development of new materials and the selection of materials. MatNavi includes Polymer DB (chemical structures, polymerization, processing, physical properties, NMR spectra, etc.), Inorganic MaterialDB (crystal structures, phase diagrams, physical properties, etc.), Metallic Material DB (density, elastic constants, creep characteristics, etc.) and Computational Electronic Structure DB (band structures obtained by first-principles calculations, etc). It also offers applications such as the Composite Design & Property Prediction System. If you register, you can search and browse various databases for free.

MatNavi user registration / authentication system updates : Needs re-registration

We updated the user registration and authentication systems of MatNavi to improve its security on December 1, 2020.
The old registered information completely discarded, and thus logging into the newly updated system with old information not be possible.
Users who have registered to the old system (registered before November 30) must register again on the newly updated system.
We apologize for the inconvenience caused by this update and ask for your cooperation.

Suspend the use of the Service

We may suspend the use of the Service by Registrant without giving prior notice to, or obtaining prior consent of Registrant, if Registrant has violated or may have violated "MatNavi Service Terms of Use", such as web scraping.



New Users:

The use of "MatNavi" is free. (Free of charge)
All you need to do is register.

Registered Users:

Please select a database and login on each page.
E-mail address and password are necessary to login.


Basic Properties


The Polymer Database (PoLyInfo) contains information on polymer names, structures, properties, measurement conditions, polymerization methods, molding methods, etc. extracted from scientific literature.


The Inorganic Materials Database (AtomWork) contains information on crystal structures, X-ray diffraction, properties, and phase diagrams extracted from scientific literature.


The Computational Phase Diagram Database (CPDDB) contains information on the Gibbs energy functions of the phases are accumulated in a form of TDB (Thermodynamic DataBase) files, which are obtained from the CALPHAD-type thermodynamic assessments.


The Computational Electronic Structure Database (CompES-X) contains information on predicted by the first-principles calculations (VASP) for crystalline inorganic compounds.


The Diffusion Database (Kakusan) contains information on the basic diffusion data (diffusion atom, diffusion coefficient, activation energy, etc.) of metallic and inorganic materials from scientific literature.


The Superconducting Material Database (SuperCon) contains information on superconducting properties of inorganic and organic materials extracted from scientific literature.


The Thermophysical Property Database contains information on density, surface tension and viscosity coefficient of metals, alloys and ceramics obtained by floating experiments using an electrostatic levitation furnace.



The Metallic Material Database (Kinzoku) contains information on tensile properties, creep properties, creep rupture properties and fatigue properties of NIMS Structural Materials Data Sheets.


The CCT Diagram Database (CCTD) contains information on CCT diagrams for welding various steel materials and related data.

NIMS Structural Materials Data Sheet Online


The Creep Data Sheet (CDS) contains PDF documents of the Creep Data Sheet published by NIMS.


Fatigue Data Sheet (FDS) contains PDF documents of the Fatigue Data Sheet published by NIMS.


The Corrosion Data Sheet (CoDS) contains PDF documents of the Corrosion Data Sheet published by NIMS.


The Space Use Materials Strength Data Sheet (SDS) contains PDF documents of the Space Use Materials Strength Data Sheet published by NIMS.



The Composite Design & Property Prediction System (CompoTherm) is an advanced simulation tool for searching for candidate composite materials with optimal thrermo-physicical properties and structures.


The Metal Segregation Prediction System (SurfSeg) is a system that predict of surface segregation between two annealed metals.


Interface Bonding Prediction System (InerChemBond) is a system that predict of interface chemical bonding between metal oxide (AxOy) and metal (M) or alloy (MB dissolved in MA).

Paid service

atomwork-adv.png AtomWork-Adv stores more data than the free AtomWork and offers a new interface and data download function.