Pith Number

pith:QIE7KJMW

pith:2026:QIE7KJMWEZVKWHAC7LQAX2RP52

not attested not anchored not stored refs resolved

Ultrafast Sintering

Jian Luo

Ultrafast sintering of ceramics proceeds rapidly without electric currents through the specimens when using intense external heating.

arxiv:2603.23423 v2 · 2026-03-24 · cond-mat.mtrl-sci

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The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

Mechanistic studies of flash sintering indicate that the flash event initiates as a coupled thermal and electrical runaway, while rapid densification is enabled by ultrahigh heating rates and elevated sintering temperatures. Building on this understanding, ultrafast sintering has been realized without passing electric currents through the specimens via multiple approaches.

C2weakest assumption

That the mechanistic understanding from flash sintering directly transfers to the current-free methods and that further investigation of kinetics will yield actionable insights for reactive ultrafast synthesis of compositionally complex ceramics.

C3one line summary

Ultrafast sintering enables rapid densification of ceramics through ultrahigh heating rates, with multiple current-free methods now available that support high-throughput exploration of compositionally complex materials.

References

168 extracted · 168 resolved · 0 Pith anchors

[1] Introduction Ceramic manufacturing via sintering , a milestone of human civilization dating back over 26,000 years [1], often requires firing at high temperatures ( e.g., 800–2000 °C) for hours. This 2000

[2] Flash Sintering In 2010, Professor Raj and co -workers invented flash sintering [9], using an applied electric field to trigger a “flash” and rapidly densify 3 mol.% Y 2O3-stabilized ZrO2 (3YSZ) in ~5 2010

[3] How does the flash initiate?

[4] What enables ultrafast densification?

[5] electro- sintering 2015

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-18T03:10:03.423817Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8209f52596266aab1c02fae00bea2fee8fe8e2daafe4fd19ff3b48fd566e7eaf

Aliases

arxiv: 2603.23423 · arxiv_version: 2603.23423v2 · doi: 10.48550/arxiv.2603.23423 · pith_short_12: QIE7KJMWEZVK · pith_short_16: QIE7KJMWEZVKWHAC · pith_short_8: QIE7KJMW

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/QIE7KJMWEZVKWHAC7LQAX2RP52 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 8209f52596266aab1c02fae00bea2fee8fe8e2daafe4fd19ff3b48fd566e7eaf

Canonical record JSON

{
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    "abstract_canon_sha256": "68421f95dc5ef6bf7577181260bfeb94f6a8f1e4e04f7c002799560643886625",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2026-03-24T16:54:36Z",
    "title_canon_sha256": "7d08dfaed580ed573f8597bf8130b440ddcf9bbe94c64a20fd8255ad91903130"
  },
  "schema_version": "1.0",
  "source": {
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    "kind": "arxiv",
    "version": 2
  }
}