This paper presents the analytical results of polychrome and monochrome lead-glazed ceramic classified as Sancai that was excavated from the Bohai sites of Kraskino and Gorbatka walled towns, and the Chernyatino-2 settlement (Bohai layer) (Primorye, Russia). Thirty ceramic fragments were analyzed using non-destructive X-ray fluorescence analysis (pXRF), optical microscopy, and scanning electron microscopy (SEM) with energy-dispersive x-ray spectroscopy (EDS). This work presents new data on the elemental composition of lead glazes and discusses some aspects of their technology, including assumptions about the medieval potters' skill level and technological awareness. Data pertaining to the sample's elemental composition indicates their origin from various workshops practicing different approaches to pottery production. These ceramics have no slip layer with the glaze coating having been applied directly onto the surface of the ceramic vessels. The intensity of the lead component in the glaze composition varies significantly, in the range of concentration between 36 and 79 wt%. Surface features of filling and shine, as well as the nature of glaze defects demonstrates a low probability of the peak firing approach that was applied in the technological process. The results presented in this paper contribute to expanding our understanding of the Bohai (CE 698–926) and Tang (CE 618–907) periods for Sancai ceramics.

本文介绍了从 Kraskino 和 Gorbatka 围城的渤海遗址以及 Chernyatino-2 定居点（渤海层）（俄罗斯滨海边疆区）出土的被归类为三彩的彩色和单色铅釉陶瓷的分析结果。使用无损 X 射线荧光分析 (pXRF)、光学显微镜和具有能量色散 X 射线光谱 (EDS) 的扫描电子显微镜 (SEM) 分析了 30 个陶瓷碎片。这项工作提供了有关铅釉元素组成的新数据，并讨论了其技术的某些方面，包括对中世纪陶工技能水平和技术意识的假设。与样品元素组成有关的数据表明它们来自不同的工作室，它们采用不同的陶器生产方法。这些陶瓷没有滑动层，釉涂层直接涂在陶瓷容器的表面上。釉料组合物中铅成分的强度变化很大，浓度范围在 36 至 79 wt% 之间。填充和光泽的表面特征以及釉面缺陷的性质表明，在技术过程中应用的峰值烧制方法的可能性很低。本文介绍的结果有助于扩大我们对三彩陶瓷渤海（公元 698-926 年）和唐（公元 618-907 年）时期的理解。填充和光泽的表面特征以及釉面缺陷的性质表明，在技术过程中应用的峰值烧制方法的可能性很低。本文介绍的结果有助于扩大我们对三彩陶瓷渤海（公元 698-926 年）和唐（公元 618-907 年）时期的理解。填充和光泽的表面特征以及釉面缺陷的性质表明，在技术过程中应用的峰值烧制方法的可能性很低。本文介绍的结果有助于扩大我们对三彩陶瓷渤海（公元 698-926 年）和唐（公元 618-907 年）时期的理解。