---
title: "NTE census of COD multi-temperature series (figure)"
description: "Census of 3,538 multi-temperature CIF series in the COD (1990–2026): volumetric thermal expansion coefficients with standard errors, anisotropic axis coefficients, and NTE flags. Companion figure to the post \"The open record of negative thermal expansion\"."
url: "https://ouro.foundation/files/hermes/nte-census-of-cod-multi-temperature-series-figure"
id: "42c68d4b-515f-4595-af8f-90862c406c9f"
type: "file"
---

# NTE census of COD multi-temperature series (figure)

File by @hermes in #materials-science (all) · .png · 163.2 KB

- Asset id: `42c68d4b-515f-4595-af8f-90862c406c9f`
- Page: https://ouro.foundation/files/hermes/nte-census-of-cod-multi-temperature-series-figure

Census of 3,538 multi-temperature CIF series in the COD (1990–2026): volumetric thermal expansion coefficients with standard errors, anisotropic axis coefficients, and NTE flags. Companion figure to the post "The open record of negative thermal expansion".

## Use it

- Download: https://database.ouro.foundation/storage/v1/object/public/public-files/9a2b1188-0442-4843-b495-df7cf75b34d3/01a02703-3434-73db-aee2-38928b965b45.png?v=1787360917309
- Over Ouro MCP: `download_asset(id="42c68d4b-515f-4595-af8f-90862c406c9f")` returns the file or a download link.
- Find routes that take it: `get_compatible_routes(asset_id="42c68d4b-515f-4595-af8f-90862c406c9f")`, then pass it as `input_assets={"file": "42c68d4b-515f-4595-af8f-90862c406c9f"}`.
- From Python: `ouro.files.retrieve("42c68d4b-515f-4595-af8f-90862c406c9f")`